1 00:00:34,200 --> 00:00:36,490 What we thought we’d do Chris, is just talk you through the plan, 2 00:00:36,661 --> 00:00:39,211 so you’ve got a rough idea as to what you’re getting into. 3 00:00:40,206 --> 00:00:44,206 So, the main risk is really that the longer you spend in the water, 4 00:00:44,294 --> 00:00:47,804 the risk goes up exponentially. If you push yourself beyond the point 5 00:00:47,922 --> 00:00:50,802 at which you should be coming out, there is a real risk you could die. 6 00:00:52,802 --> 00:00:54,052 Yup. 7 00:00:55,638 --> 00:00:56,888 CHRIS: As you can tell, 8 00:00:57,348 --> 00:01:00,688 the safety team have one or two concerns about what I’m about to do. 9 00:01:01,811 --> 00:01:03,061 So do I. 10 00:01:05,231 --> 00:01:07,071 Right, this is where we switch it on now, okay? 11 00:01:08,568 --> 00:01:11,198 Somehow, I’ve been talked into an open water swim... 12 00:01:11,529 --> 00:01:12,609 Good. 13 00:01:14,365 --> 00:01:15,655 ...in the Arctic. 14 00:01:16,409 --> 00:01:18,119 Impose your will on the sea. 15 00:01:19,829 --> 00:01:21,749 Two minutes! Two minutes! 16 00:01:23,792 --> 00:01:26,462 And if there’s one thing I really, really hate... 17 00:01:30,131 --> 00:01:31,261 it’s the cold. 18 00:01:34,260 --> 00:01:38,640 Why am I doing this? Why am I doing this? Why am I doing this? 19 00:01:51,027 --> 00:01:53,737 -Special change of scenery. -Epic surroundings. 20 00:01:53,988 --> 00:01:55,868 I'll say, there's no mangoes falling off the trees here! 21 00:01:56,074 --> 00:01:57,284 Yeah. 22 00:01:59,536 --> 00:02:03,616 As part of my mission to live longer, I’ve traded the warmth of Australia 23 00:02:04,415 --> 00:02:05,625 for the frozen north. 24 00:02:08,336 --> 00:02:10,206 And along for the ride, I’ve got these jokers. 25 00:02:11,005 --> 00:02:13,875 My younger brother Liam, and my older brother Luke. 26 00:02:16,010 --> 00:02:18,140 When I invited them to hang out at the beach, 27 00:02:18,304 --> 00:02:20,224 not quite sure this is what they imagined. 28 00:02:21,141 --> 00:02:22,481 Feather that clutch, mate. 29 00:02:22,851 --> 00:02:25,521 Dude, I can’t feel the floor. These boots are a bit thick. 30 00:02:25,812 --> 00:02:27,862 We’ve let the worst driver of all drive us. 31 00:02:27,981 --> 00:02:29,481 -Why is Chris driving, mate? -Are you kidding? 32 00:02:29,566 --> 00:02:31,026 I’m the best driver ever, dude. 33 00:02:35,738 --> 00:02:38,828 We’re here with a man who says extreme temperatures are actually 34 00:02:38,908 --> 00:02:42,498 gonna be good for me. Sports scientist, Ross Edgley. 35 00:02:42,829 --> 00:02:45,869 I mean, it doesn’t get much better than this really, does it? 36 00:02:45,957 --> 00:02:49,667 I mean, as a training ground, as a sports lab... 37 00:02:50,128 --> 00:02:51,838 I'm in my element. 38 00:02:51,921 --> 00:02:53,971 I don't know how comfortable I am with that! 39 00:02:55,967 --> 00:02:59,757 Ross Edgley is one of the fittest humans on the planet. 40 00:03:02,932 --> 00:03:05,272 The kind of guy who takes everything to the limit. 41 00:03:08,021 --> 00:03:12,031 He's the only person in the world to swim all the way around Great Britain. 42 00:03:13,193 --> 00:03:16,033 And he did it in 157 days straight. 43 00:03:21,159 --> 00:03:23,489 CHRIS: But then he takes it even further... 44 00:03:24,245 --> 00:03:26,955 ...you know, with, like, swimming in ice-cold water. 45 00:03:33,880 --> 00:03:37,050 I believe we humans only really thrive in the face of adversity. 46 00:03:38,259 --> 00:03:41,929 You find out about your physiology, you find out about your mentality... 47 00:03:42,805 --> 00:03:46,475 and there are now theories that subjecting your body to extreme temperatures 48 00:03:46,684 --> 00:03:48,604 could even help you live longer. 49 00:03:54,234 --> 00:03:57,034 And that is why I signed up for this Arctic adventure. 50 00:04:00,406 --> 00:04:04,156 Ross might love the cold, but I'm more like Goldilocks. 51 00:04:04,911 --> 00:04:07,661 Not too hot, not too cold, I'm happiest right in the middle. 52 00:04:09,374 --> 00:04:12,174 And you’d think that staying in a comfortable temperature 53 00:04:12,418 --> 00:04:15,128 is also the best way to keep healthy for the long haul. 54 00:04:15,922 --> 00:04:20,342 But new science says embracing extreme cold, and extreme heat... 55 00:04:22,095 --> 00:04:24,385 could force your body to upgrade its defenses... 56 00:04:26,724 --> 00:04:29,644 and power up its microscopic repair systems... 57 00:04:31,688 --> 00:04:36,188 which could cut the risks of disease, and maybe add years to your life. 58 00:04:39,112 --> 00:04:42,572 So, it’s time for some serious shock therapy. 59 00:04:46,077 --> 00:04:49,747 After three days of training, Chris will attempt a cold-water swim 60 00:04:49,914 --> 00:04:52,714 that's going to test his body to the absolute limit. 61 00:04:54,085 --> 00:04:58,335 Two hundred and fifty yards across a bone-chilling Arctic Fjord, 62 00:04:58,840 --> 00:05:01,590 wearing nothing but swimming trunks and a smile. 63 00:05:04,053 --> 00:05:08,683 If he can endure that, then maybe he could fall in love with the cold... 64 00:05:10,601 --> 00:05:12,601 and make it part of his life. 65 00:06:02,695 --> 00:06:06,445 So, how’s your Australian physiology coping with this? 66 00:06:06,532 --> 00:06:10,662 It's in complete shock right now. My ears are about to snap off. 67 00:06:12,705 --> 00:06:16,495 They’re like little icicles and I’m a little concerned. 68 00:06:26,511 --> 00:06:28,761 This is the plunge. 69 00:06:30,681 --> 00:06:31,721 Yeah. 70 00:06:31,849 --> 00:06:34,019 And I want you to basically get down to your trunks, get in, 71 00:06:34,143 --> 00:06:37,313 and I just want you to experience the cold at its rawest form. 72 00:06:37,480 --> 00:06:39,360 -Yeah. -Think of it almost like a baptism. 73 00:06:39,482 --> 00:06:41,442 That’s what we’re doing. Because you need to understand 74 00:06:41,526 --> 00:06:43,316 what's going on inside the body. So... 75 00:06:43,403 --> 00:06:45,783 Oh, it knows it's gonna freeze in a second, yeah. 76 00:06:45,988 --> 00:06:47,318 -Yes. Yeah. This is it. -Yeah. 77 00:06:47,573 --> 00:06:49,833 This is it. No, no, no. But it's gonna be a shock to the body. 78 00:06:49,909 --> 00:06:50,949 I’m not gonna lie. 79 00:06:51,035 --> 00:06:52,825 -Yeah. -I’m gonna be so honest with you. 80 00:06:53,246 --> 00:06:54,286 To prepare for the swim, 81 00:06:54,372 --> 00:06:57,462 the first step is subjecting Chris to full immersion. 82 00:06:58,042 --> 00:07:02,632 The problem is that cold water triggers some really powerful survival mechanisms. 83 00:07:03,047 --> 00:07:05,927 But if you’re training for an ice swim, they actually work against you. 84 00:07:06,759 --> 00:07:09,849 I need Chris to understand what those reactions feel like, 85 00:07:10,096 --> 00:07:12,136 and then start to tame them. 86 00:07:13,015 --> 00:07:14,635 One of the first things that we're gonna experience 87 00:07:14,725 --> 00:07:16,185 is this gasp reflex. 88 00:07:16,310 --> 00:07:17,690 -The body's basically just going... 89 00:07:17,770 --> 00:07:20,860 Is exactly it. You wanna gasp, perfectly normal. That is... 90 00:07:20,940 --> 00:07:22,860 -It’s just self-preservation. -Mm-hmm. Perfectly normal. 91 00:07:22,942 --> 00:07:25,192 -Yeah. Once we start the timer... -Yeah. Yeah. 92 00:07:25,278 --> 00:07:26,948 ...once we’re in, make no mistake, 93 00:07:27,029 --> 00:07:29,159 we basically started the timer on hypothermia, 94 00:07:29,365 --> 00:07:32,445 and to put it bluntly, consciousness and dying. 95 00:07:32,535 --> 00:07:35,745 And saying, "goodbye, life." Yeah. All right. 96 00:07:36,372 --> 00:07:38,922 Oh, yeah. Here we go! 97 00:07:40,126 --> 00:07:42,456 ROSS: Before we let Chris loose in open water, 98 00:07:42,587 --> 00:07:45,207 I want to see if he can get through the initial shock 99 00:07:45,631 --> 00:07:48,971 and tough it out for at least a couple of minutes here in the harbor. 100 00:07:49,927 --> 00:07:54,017 Do I reckon this warm-blooded Aussie can do it? I don't know. 101 00:07:55,057 --> 00:07:56,637 Oh, yes, this is a great idea! 102 00:07:56,767 --> 00:07:58,687 -Here we go. -Follow my lead. 103 00:08:03,649 --> 00:08:04,689 All right. 104 00:08:12,950 --> 00:08:16,450 -That's it. Breathe, breathe. -Oh, boy. 105 00:08:18,164 --> 00:08:20,084 -Good. Good. Really good. -Whoo! 106 00:08:20,500 --> 00:08:21,540 -Breathe. -Wow! 107 00:08:21,792 --> 00:08:24,002 Okay, there you go, okay. There you go. So that's that gasp reflex. 108 00:08:24,295 --> 00:08:26,915 You know, that hyperventilation. Control it. Control it. 109 00:08:27,048 --> 00:08:28,218 Don’t let it bully me. 110 00:08:28,466 --> 00:08:30,336 Self-preservation, your body is going, "get out!" 111 00:08:30,468 --> 00:08:31,928 -But override that. 112 00:08:32,637 --> 00:08:34,097 -How we feeling? -Oh, freezing. 113 00:08:34,222 --> 00:08:35,312 -Okay. -Yeah. 114 00:08:35,598 --> 00:08:37,728 -Feels like I’m in the fire. 115 00:08:37,934 --> 00:08:41,484 -Okay, breathe! We are at one minute. 116 00:08:41,562 --> 00:08:42,812 -So, now, what's happening? 117 00:08:42,897 --> 00:08:44,147 Now we’ve got over that gasp reflex. 118 00:08:44,273 --> 00:08:45,323 No, no, we haven’t. 119 00:08:45,399 --> 00:08:47,609 -It's still going? -I haven’t got over anything! 120 00:08:48,110 --> 00:08:49,570 ROSS: Someone forgot to put the hot tap on. 121 00:08:49,695 --> 00:08:51,565 -Oh, God! Oh, God! -CHRIS: As if things weren’t bad enough, 122 00:08:52,448 --> 00:08:55,488 Luke and Liam, and our buddy, Mick, have got front row seats. 123 00:08:56,285 --> 00:08:57,285 Summer swim? 124 00:08:57,370 --> 00:08:58,910 -Yes, boys! 125 00:08:58,996 --> 00:09:00,036 Oh, God! 126 00:09:00,164 --> 00:09:01,964 CHRIS: Now, why did I invite them, again? 127 00:09:02,166 --> 00:09:03,746 How is it? 128 00:09:04,168 --> 00:09:05,958 Oh, it’s amazing, it’s so warm in here. 129 00:09:06,128 --> 00:09:07,458 What’s the level of shrinkage? 130 00:09:10,258 --> 00:09:12,798 How would you feel if I said, "Let’s put our face under?" 131 00:09:13,553 --> 00:09:15,723 Okay, let's go. 132 00:09:17,682 --> 00:09:19,272 -Oh, boy. -Oh, wow! 133 00:09:19,475 --> 00:09:21,135 -Terrible idea. 134 00:09:21,269 --> 00:09:22,899 -Yeah. I'm impressed. 135 00:09:23,229 --> 00:09:25,229 All right, I think we’ve proved our point, right? Can we get out? 136 00:09:25,314 --> 00:09:26,694 Right. Hang on, give me 30 more seconds. 137 00:09:26,774 --> 00:09:27,694 Oh, what? 138 00:09:27,817 --> 00:09:29,437 Can you feel that blood going away from your extremities? 139 00:09:29,527 --> 00:09:30,987 Yeah, I can feel all sorts of pain. 140 00:09:31,070 --> 00:09:32,240 -So, quick test. -Yeah. 141 00:09:32,321 --> 00:09:33,741 -Quick dexterity test for me. -Yeah. 142 00:09:33,990 --> 00:09:35,030 -How's that? -They feel like... 143 00:09:35,157 --> 00:09:36,867 -How quickly can you move your hands? -...pins and needles! 144 00:09:39,537 --> 00:09:41,247 -Shit. 145 00:09:41,581 --> 00:09:42,541 -We are at... -Awesome. 146 00:09:42,707 --> 00:09:44,827 -...two minutes, 50. 147 00:09:45,126 --> 00:09:47,546 -Talk to me. How are we feeling? -I feel like I’m dying. 148 00:09:47,670 --> 00:09:49,510 -Okay... 149 00:09:49,714 --> 00:09:50,974 You actually probably are. 150 00:09:52,925 --> 00:09:54,545 -Let’s just get out! -No, no, no, no, 151 00:09:54,760 --> 00:09:56,470 -give me 30 more seconds. 152 00:09:56,554 --> 00:09:58,064 -No, don't get out. -Stop saying that! 153 00:09:58,139 --> 00:09:59,389 -Five minutes. -Just another 30. 154 00:09:59,473 --> 00:10:01,103 We're done, we're done, you did good, man. You're good. 155 00:10:01,183 --> 00:10:02,563 I don't think I can get out. 156 00:10:02,685 --> 00:10:04,805 -Nice, big man, nice. -I can't... 157 00:10:04,937 --> 00:10:06,107 -Let's go. -You got it, Chris. 158 00:10:06,188 --> 00:10:07,568 My hands, I can’t feel them. 159 00:10:07,690 --> 00:10:09,980 Go on, straight into push-ups, Chris! 160 00:10:10,109 --> 00:10:12,069 -Yeah, yeah, yeah, yeah. 161 00:10:12,320 --> 00:10:15,320 Oh, my God, is there a towel somewhere? 162 00:10:15,531 --> 00:10:17,371 -I got it, I got it. Here you go. 163 00:10:17,450 --> 00:10:18,950 -What’s that towel? -What are you... 164 00:10:19,076 --> 00:10:20,786 The world’s smallest towel! 165 00:10:22,538 --> 00:10:25,288 -It's okay, it's a warm wind. -Oh, God. Wow. 166 00:10:25,541 --> 00:10:28,961 Fifty-year storm's coming in, guys, we've got to get to safety! 167 00:10:33,132 --> 00:10:36,682 To safely recover from the shock, we have to bring Chris's core temperature 168 00:10:36,802 --> 00:10:38,512 back to normal gradually. 169 00:10:39,013 --> 00:10:42,393 Man. My toes, mate. 170 00:10:44,560 --> 00:10:45,980 Keep it going, keep it going. 171 00:10:46,187 --> 00:10:47,267 Yeah, good. There you go. 172 00:10:47,563 --> 00:10:49,153 -Whoo! -All right, on three. 173 00:10:49,315 --> 00:10:50,855 My fingers just don’t exist right now. 174 00:10:50,941 --> 00:10:52,231 ROSS: They'll recover, don't worry about it. 175 00:10:52,318 --> 00:10:53,568 That was the hardest thing I’ve ever done. 176 00:10:53,653 --> 00:10:55,743 -I'm fine. Yeah, by far. 177 00:10:56,197 --> 00:10:57,737 -That was... -That was terrific. 178 00:10:57,823 --> 00:10:59,283 -...the most awful thing. 179 00:10:59,450 --> 00:11:01,540 You know when you, like, regret moments in your career? 180 00:11:03,371 --> 00:11:04,751 That was one, Ross. 181 00:11:07,291 --> 00:11:10,961 -Wow! That’s something else, Ross. 182 00:11:13,172 --> 00:11:15,682 CHRIS: Being that cold, it’s just so intense. 183 00:11:18,052 --> 00:11:20,472 And I feel like I’m outside of my comfort zone 184 00:11:20,554 --> 00:11:22,014 further than I've probably ever been. 185 00:11:22,223 --> 00:11:24,233 -Do you want me to hug you? -My arms are cold. 186 00:11:24,392 --> 00:11:26,232 My arms are like freezing. 187 00:11:26,769 --> 00:11:28,229 -Thank you. -There you go. 188 00:11:29,146 --> 00:11:30,856 Finger in there. Is that boiling? Yeah? 189 00:11:30,940 --> 00:11:31,980 -No idea. 190 00:11:35,528 --> 00:11:36,778 That was a struggle. 191 00:11:37,988 --> 00:11:41,198 And out in open water, it's only gonna get harder. 192 00:11:42,827 --> 00:11:46,537 To stand any chance of doing this swim, Chris has to start taming those reactions. 193 00:11:48,332 --> 00:11:51,632 And there are scientists who believe controlling the body’s response 194 00:11:51,794 --> 00:11:55,464 to the cold could also have huge health benefits down the line. 195 00:12:00,094 --> 00:12:03,854 As I get older, one quirk to look forward to is that my built-in 196 00:12:03,931 --> 00:12:05,471 defense system could get trigger happy. 197 00:12:07,727 --> 00:12:09,397 CHRIS: Throughout the body's blood vessels, 198 00:12:09,478 --> 00:12:14,068 an unwelcome surge of immune cells can cause collateral damage... 199 00:12:17,611 --> 00:12:19,321 doing more harm than good. 200 00:12:21,282 --> 00:12:24,792 The resulting breakdown in tissues and organs is called "inflammaging." 201 00:12:26,036 --> 00:12:28,956 And it fuels two of the biggest killers in the modern world. 202 00:12:33,294 --> 00:12:36,464 But there’s a theory that dialing down our reactions to the cold... 203 00:12:38,340 --> 00:12:41,930 could also help to reset that rogue immune system, 204 00:12:43,304 --> 00:12:46,144 and cut the risks of deadly disease in old age. 205 00:12:50,102 --> 00:12:54,982 So, I’ve gotta subject myself to regular blasts of icy pain, 206 00:12:55,399 --> 00:12:57,649 and I might not even see the benefits for years? 207 00:12:59,320 --> 00:13:00,360 Fantastic. 208 00:13:04,658 --> 00:13:06,328 Fortunately, there is another upside 209 00:13:06,869 --> 00:13:08,539 that can kick in much sooner. 210 00:13:18,214 --> 00:13:21,474 After Johanna Nordblad smashed her leg in a cycling accident, 211 00:13:21,926 --> 00:13:25,756 her fractures healed, but the pain never stopped. 212 00:13:28,182 --> 00:13:30,102 It felt like fire in my bones. 213 00:13:31,143 --> 00:13:33,813 I couldn't sleep. 214 00:13:42,613 --> 00:13:45,663 My leg had been in agony for three years. 215 00:13:47,117 --> 00:13:50,287 I was ready to try anything. 216 00:13:58,546 --> 00:14:00,256 Conventional drugs didn’t cut through. 217 00:14:01,298 --> 00:14:03,508 So, doctors prescribed a radical alternative. 218 00:14:07,721 --> 00:14:12,891 A new treatment, based on the theory that cold water can scramble pain signals 219 00:14:13,561 --> 00:14:14,851 before they reach the brain. 220 00:14:20,568 --> 00:14:22,568 When I put my leg in the water 221 00:14:22,695 --> 00:14:27,445 for the first time since the accident, it stopped hurting. 222 00:14:30,619 --> 00:14:35,169 Tears welled in my eyes, and I cried. 223 00:14:40,838 --> 00:14:42,758 Johanna got her life back... 224 00:14:44,216 --> 00:14:45,426 but she didn’t stop there. 225 00:14:56,020 --> 00:14:58,110 She was already a free diver... 226 00:14:59,565 --> 00:15:01,225 but taking on these frozen lakes... 227 00:15:02,067 --> 00:15:04,317 has allowed her to not only to endure the cold, 228 00:15:05,404 --> 00:15:06,704 but to embrace it. 229 00:15:12,494 --> 00:15:16,084 The treatment took away my fear of the cold. 230 00:15:22,004 --> 00:15:27,264 If you keep calm, you can stay in much longer. 231 00:15:32,139 --> 00:15:36,189 This has brought more than just pain relief. 232 00:15:42,775 --> 00:15:46,815 By swimming in cold water, you get ill far less often. 233 00:15:49,073 --> 00:15:52,163 I feel healthier and full of energy. 234 00:16:15,724 --> 00:16:16,984 The right dose of shock 235 00:16:17,101 --> 00:16:19,271 could enhance your ability to fight off infection. 236 00:16:20,479 --> 00:16:22,729 And you don’t have to be an ice-diver. 237 00:16:25,651 --> 00:16:29,741 In one study, people who flipped to cold for the last 30 seconds 238 00:16:29,863 --> 00:16:34,793 of their daily shower, ended up taking almost 30 percent fewer sick days. 239 00:16:35,411 --> 00:16:36,701 That’s pretty impressive. 240 00:16:42,543 --> 00:16:47,303 It's good to be outside your comfort zone. 241 00:16:50,050 --> 00:16:53,470 Open your mind. 242 00:16:54,763 --> 00:16:56,853 Embrace the feeling of the cold. 243 00:17:08,235 --> 00:17:09,985 As more benefits come to light, 244 00:17:10,070 --> 00:17:13,490 people are finding their own ways to harness extreme temperatures. 245 00:17:16,243 --> 00:17:18,583 And as we take my training to the next level, 246 00:17:19,163 --> 00:17:23,043 Ross has come up with the perfect way to lure me back into the water. 247 00:17:24,293 --> 00:17:26,423 The one thing he knows I can’t resist. 248 00:17:35,554 --> 00:17:36,764 Whoo! 249 00:17:37,264 --> 00:17:41,854 It’s absolutely beautiful, but your brain’s going, 250 00:17:42,519 --> 00:17:44,519 "What’s going on here? Why are we heading to the water, 251 00:17:44,646 --> 00:17:46,646 "Why are we trudging through snow?" 252 00:17:47,149 --> 00:17:50,029 -You’re gonna feel alive after this. 253 00:17:53,197 --> 00:17:57,237 Back in Australia, I surf a lot, but going out in these conditions... 254 00:18:00,162 --> 00:18:01,252 now, that's gnarly. 255 00:18:02,456 --> 00:18:04,706 Luckily, I've got my good buddy here. 256 00:18:05,167 --> 00:18:07,877 Three-time world champion surfer, Mick Fanning. 257 00:18:08,295 --> 00:18:10,415 Who Ross has roped in to keep me on track. 258 00:18:14,635 --> 00:18:16,295 Coming to a place like this... 259 00:18:17,179 --> 00:18:19,429 it’s such a different experience than what we’re used to at home. 260 00:18:19,515 --> 00:18:20,515 Yeah. 261 00:18:20,682 --> 00:18:22,352 -It’s so easy at home, you know? -Yeah. 262 00:18:22,476 --> 00:18:25,516 You have board shorts, it’s warm, you can park right at the beach. 263 00:18:25,687 --> 00:18:28,567 When here, you gotta think about your warmth, you gotta think 264 00:18:28,690 --> 00:18:30,400 about getting through the waves and... 265 00:18:31,276 --> 00:18:33,816 With the elements just so raw and real, 266 00:18:34,196 --> 00:18:35,816 you have to zero in in these conditions. 267 00:18:36,448 --> 00:18:37,828 Otherwise, you’ll end up on the rocks over there, 268 00:18:37,908 --> 00:18:39,828 -somewhere. -Yeah. 269 00:18:49,128 --> 00:18:52,048 Let's get on with it, shall we? 270 00:18:57,636 --> 00:19:00,596 I want Chris to experience prolonged exposure. 271 00:19:02,391 --> 00:19:06,271 But in these conditions, half an hour in his trunks could kill him. 272 00:19:09,731 --> 00:19:11,651 So, this is the wetsuit test. 273 00:19:13,735 --> 00:19:17,025 As he steadily cools down, he’s gonna experience a significant loss 274 00:19:17,114 --> 00:19:20,584 in muscle strength, and his coordination is gonna go to pieces. 275 00:19:23,203 --> 00:19:24,753 -I’m keeping warm, 276 00:19:24,872 --> 00:19:26,962 -with Liam and Luke. -What are they doing? 277 00:19:27,374 --> 00:19:31,004 I wanna see if Chris can hold it all together and stay mobile. 278 00:19:40,387 --> 00:19:43,137 Let's see how much harder it is to paddle, eh? 279 00:19:46,977 --> 00:19:48,477 All right, here you go. Here goes Mick. 280 00:20:10,500 --> 00:20:11,590 Wow! 281 00:20:15,214 --> 00:20:17,134 -Little boost on the end. Epic! -Whoo! 282 00:20:24,598 --> 00:20:27,938 I started surfing when I was about ten, ten years old. 283 00:20:32,689 --> 00:20:34,519 It's not a bad obsession to have. 284 00:20:38,987 --> 00:20:41,447 But this is like being on another planet. 285 00:20:44,201 --> 00:20:47,451 -A pretty brutal experience. 286 00:20:48,580 --> 00:20:51,290 You, go. You, go! Jump on. 287 00:20:58,465 --> 00:20:59,545 It's Chris. 288 00:21:00,384 --> 00:21:02,554 LUKE: There you go! Oh, I can't believe it! 289 00:21:04,346 --> 00:21:06,556 Oh! Yes! 290 00:21:09,309 --> 00:21:12,149 -Oh, yes, mate! 291 00:21:12,813 --> 00:21:14,903 -That's an actual turn! -An actual good wave! Oh! 292 00:21:25,742 --> 00:21:27,542 -Yeah! -That's huge! 293 00:21:33,375 --> 00:21:35,085 I’m not easily impressed by Chris’s surfing... 294 00:21:35,168 --> 00:21:37,958 -Right. Yeah. Yeah. -...but that was pretty impressive. 295 00:21:46,013 --> 00:21:48,813 To begin with, you feel like you’re winning. 296 00:21:55,314 --> 00:21:57,614 -You all right? -It's just so hard to swim. 297 00:21:58,525 --> 00:21:59,895 But eventually... 298 00:22:01,361 --> 00:22:03,201 you start to get so cold. 299 00:22:04,281 --> 00:22:05,701 They're so far out now. 300 00:22:07,034 --> 00:22:08,794 It’s so mental out there. 301 00:22:12,539 --> 00:22:15,039 I can feel it sucking the strength out of my arms. 302 00:22:18,545 --> 00:22:20,005 It’s harder to maneuver. 303 00:22:21,131 --> 00:22:22,671 My balance is off... 304 00:22:24,009 --> 00:22:25,799 and I'm feeling pretty vulnerable at this point. 305 00:22:33,977 --> 00:22:37,517 -He’s taking a break. -Oh, my God. 306 00:22:39,775 --> 00:22:41,145 Oof! Oh! 307 00:22:41,485 --> 00:22:43,945 -I think he's... -He got poleaxed on that one. 308 00:22:46,531 --> 00:22:47,661 Oh, my God. 309 00:22:48,075 --> 00:22:49,365 It's absolutely freezing. 310 00:22:50,744 --> 00:22:53,294 And at this point, I’ve had enough. 311 00:22:57,167 --> 00:22:59,707 -How was it? -It was so intense. 312 00:23:00,504 --> 00:23:02,594 -It's like... It's kind of scary. -Yeah. 313 00:23:03,048 --> 00:23:04,968 The storm kicked back in and started hailing, 314 00:23:05,258 --> 00:23:06,298 couldn’t even see the waves. 315 00:23:06,468 --> 00:23:08,138 -The hail was hitting me in the eye. -Yeah. 316 00:23:08,220 --> 00:23:10,310 -It's a completely different, you know... -And I’ve noticed as well... 317 00:23:10,389 --> 00:23:11,769 -...game, right? -...the wind chill. Did you feel 318 00:23:11,890 --> 00:23:13,100 -that out there as well? -For sure. 319 00:23:13,225 --> 00:23:14,345 Yeah. -Yeah. 320 00:23:14,476 --> 00:23:15,976 -At the end, not catching waves... -Yeah. 321 00:23:16,061 --> 00:23:17,151 ...I started to get a little colder. 322 00:23:17,312 --> 00:23:19,062 And when you get cold, it just hurts, right? 323 00:23:19,231 --> 00:23:22,441 Yeah. It was... Feels like knives in your fingers and your toes. 324 00:23:22,651 --> 00:23:24,901 Generally speaking, you’d probably do everything that you can to avoid 325 00:23:25,028 --> 00:23:26,948 -a surf like that, but... -Yeah. 326 00:23:27,155 --> 00:23:28,775 ...hats off to you, guys. 327 00:23:34,704 --> 00:23:36,254 It was pretty wild out there. 328 00:23:36,957 --> 00:23:41,497 That kind of cold is completely ridiculous and alien to anything I've ever done. 329 00:23:43,922 --> 00:23:48,222 So, the idea of now going and swimming without all of that gear and the wet suits 330 00:23:48,343 --> 00:23:49,513 and so on... 331 00:23:51,763 --> 00:23:52,973 has become a really... 332 00:23:54,057 --> 00:23:55,807 intense, scary reality. 333 00:24:00,856 --> 00:24:02,896 ROSS: I think Chris has earned a break from the cold. 334 00:24:05,986 --> 00:24:09,196 And up here, there’s another way to boost longevity. 335 00:24:09,823 --> 00:24:11,993 At the other end of the temperature scale. 336 00:24:18,582 --> 00:24:19,582 Whoo! 337 00:24:20,625 --> 00:24:24,585 Ross has hooked me up with longevity expert, Dr. Peter Attia. 338 00:24:26,214 --> 00:24:27,514 All right. 339 00:24:29,926 --> 00:24:31,006 It's intense. 340 00:24:31,678 --> 00:24:35,928 But Peter's convinced that regular saunas can boost my long-term health. 341 00:24:36,641 --> 00:24:38,981 DR. PETER: You know, now that we just got in here, Chris, 342 00:24:39,060 --> 00:24:40,150 let's take your pulse. 343 00:24:40,520 --> 00:24:41,610 All right. 344 00:24:44,024 --> 00:24:46,944 DR. PETER: Yeah, you're about 64 beats per minute. 345 00:24:47,527 --> 00:24:49,647 But we've got this temperature cranked up to about 346 00:24:49,779 --> 00:24:51,409 -hundred and ninety-five degrees... -Yeah. 347 00:24:51,490 --> 00:24:52,530 DR. PETER: ...Fahrenheit. 348 00:24:54,159 --> 00:24:56,199 So, let's see where you are in a couple of minutes. 349 00:24:56,328 --> 00:24:59,158 I guess I gotta get used to this heat. 350 00:24:59,456 --> 00:25:01,826 Yeah, we're uncomfortable right now because we're hot. 351 00:25:02,083 --> 00:25:05,423 And in response to that, our body is trying to cool us off. 352 00:25:05,712 --> 00:25:07,842 -Yeah. -And so, it's pumping harder 353 00:25:08,089 --> 00:25:11,759 so that your heart can quickly get the blood to the outside of your body. 354 00:25:11,927 --> 00:25:15,137 And just as exercise is known to help with cardiovascular disease, 355 00:25:15,514 --> 00:25:18,064 I think sauna has a number of those benefits as well. 356 00:25:18,808 --> 00:25:21,188 -Like a workout. Yeah. -Yeah, exactly. 357 00:25:22,437 --> 00:25:24,937 Yeah, you're about 135 right now. 358 00:25:25,357 --> 00:25:27,527 About twice what you were when we started. 359 00:25:27,901 --> 00:25:29,401 -It also... -It goes back to how beneficial 360 00:25:29,611 --> 00:25:30,741 -stress is, right? -Yeah. Yeah. 361 00:25:30,820 --> 00:25:32,200 I mean, stressing our bodies in any way 362 00:25:32,280 --> 00:25:34,780 is... It forces us to adapt and evolve and change. 363 00:25:34,866 --> 00:25:39,156 Yeah. Well, we just... Our body wants to stay in a certain temperature range. 364 00:25:39,663 --> 00:25:42,543 And right now, we're pushing ourselves way outside that comfort zone. 365 00:25:43,124 --> 00:25:46,674 And in the process of adaptation, our body protects us by increasing 366 00:25:46,795 --> 00:25:50,375 the production of these special molecules called heat shock proteins, 367 00:25:50,674 --> 00:25:53,474 which are extremely effective in the fight against disease. 368 00:25:55,387 --> 00:25:57,637 I like to think I look healthy on the outside. 369 00:25:59,516 --> 00:26:02,596 But on the inside, deep in my cells... 370 00:26:03,770 --> 00:26:07,610 heaps of molecular junk piling up from the wear and tear of age. 371 00:26:09,025 --> 00:26:12,275 Hoarding all that trash could lead to serious problems when I'm older. 372 00:26:16,825 --> 00:26:20,825 But the blistering heat of the sauna tells my body to send in a cleanup crew... 373 00:26:22,455 --> 00:26:23,575 heat shock proteins. 374 00:26:24,833 --> 00:26:28,093 And these tiny heroes get to work fixing up the junk 375 00:26:28,962 --> 00:26:31,462 to give my cells the ultimate spring cleaning. 376 00:26:38,430 --> 00:26:41,680 By upping my heart rate and releasing heat shock proteins, 377 00:26:42,017 --> 00:26:43,887 getting this hot can work wonders. 378 00:26:45,729 --> 00:26:49,399 The two places where sauna is having the most benefit 379 00:26:49,774 --> 00:26:54,324 is in cardiovascular disease, where it is about a 50 percent reduction 380 00:26:54,404 --> 00:26:57,954 in risk of death, and Alzheimer's disease, where it's about 381 00:26:58,033 --> 00:27:01,043 -a 65, 66 percent reduction. -Wow. 382 00:27:01,745 --> 00:27:06,205 DR. PETER: Yeah, this exceeds that of virtually any drug that we can imagine. 383 00:27:06,666 --> 00:27:07,786 Incredible. 384 00:27:10,670 --> 00:27:12,840 That's from simply taking frequent saunas, 385 00:27:13,465 --> 00:27:16,375 fired up to around 170 degrees Fahrenheit. 386 00:27:18,303 --> 00:27:20,393 Now, that's the kind of prescription I can handle. 387 00:27:22,265 --> 00:27:23,345 But right now... 388 00:27:25,226 --> 00:27:27,186 I've got some unfinished business with the cold. 389 00:27:43,912 --> 00:27:46,122 Yes, boys, how we feeling? 390 00:27:46,414 --> 00:27:47,964 -Wow, mate. -That's what I'm saying, mate. 391 00:27:48,041 --> 00:27:49,211 -Yeah, Rossy! 392 00:27:49,376 --> 00:27:52,626 With the swim looming, there’s no let-up in the training. 393 00:27:52,879 --> 00:27:55,129 -Are you plotting something? -I just think... 394 00:27:55,256 --> 00:27:56,796 I’m gonna be completely honest, now we’re out here. 395 00:27:56,883 --> 00:27:59,513 I just... I don’t think there’s such a thing as too much acclimatization. 396 00:27:59,678 --> 00:28:02,928 I just think we need to get you as cold as possible, as often as possible. 397 00:28:05,767 --> 00:28:07,557 Let’s go, let's go, let's go! 398 00:28:07,769 --> 00:28:10,399 -All right. All right. 399 00:28:13,233 --> 00:28:16,903 CHRIS: All my brothers and my friends have done so far is laugh at me. 400 00:28:17,362 --> 00:28:19,492 So, this is payback time. 401 00:28:19,781 --> 00:28:22,581 -Let's do it! 402 00:28:32,252 --> 00:28:35,632 Ross says that each blast of the cold will help tame my reactions. 403 00:28:39,300 --> 00:28:41,220 And here’s another kind of Arctic torture. 404 00:28:41,302 --> 00:28:42,602 -We're going. -Let's go. 405 00:28:42,804 --> 00:28:45,814 We're going. 406 00:28:45,932 --> 00:28:48,692 My brothers and I, we love a bit of pointless competition. 407 00:28:50,562 --> 00:28:52,362 So, we’re going all in. 408 00:28:52,480 --> 00:28:54,570 -All right, let's go, fellas. -Let's do it. 409 00:28:56,484 --> 00:28:59,284 Go, get him. Where's he going with it? 410 00:29:01,698 --> 00:29:04,028 I’ve got to keep using my muscles in the cold... 411 00:29:07,954 --> 00:29:09,624 ...and maintain that coordination. 412 00:29:10,498 --> 00:29:11,918 Oh! 413 00:29:12,041 --> 00:29:13,541 Or try to, anyway. 414 00:29:16,629 --> 00:29:19,839 And according to Ross, repeating these doses... 415 00:29:21,301 --> 00:29:24,141 should eventually break the body’s resistance to the cold. 416 00:29:36,566 --> 00:29:38,226 -Oh, boy. -How do we feel, boys? 417 00:29:38,651 --> 00:29:40,821 -I feel... 418 00:29:41,237 --> 00:29:43,157 -I feel actually... -I felt like I was gonna vomit. 419 00:29:43,281 --> 00:29:45,201 -For me, it’s like absolute agony. -Yeah. Yeah. 420 00:29:45,408 --> 00:29:48,408 Does training for this actually make any difference? 421 00:29:49,037 --> 00:29:52,327 Well, it's... I don't know if it's any less uncomfortable 422 00:29:52,457 --> 00:29:55,247 or you're just more familiar with being uncomfortable, 423 00:29:55,543 --> 00:29:57,173 and I feel like definitely having done it 424 00:29:57,253 --> 00:29:59,173 -a few times, you're like, "Okay..." -Yeah. 425 00:29:59,339 --> 00:30:01,009 -"...this is what it is." But... -Yeah. 426 00:30:01,216 --> 00:30:03,796 ...I don't know that there's a massive change in my body 427 00:30:03,885 --> 00:30:05,385 because it's still pretty uncomfortable, but... 428 00:30:05,553 --> 00:30:07,013 -Yeah. -Still pretty incredible. 429 00:30:07,180 --> 00:30:08,180 -Yeah. -It's... Thanks. 430 00:30:10,266 --> 00:30:13,556 Yeah, I think doing things that hurt, there's a benefit, right? 431 00:30:13,686 --> 00:30:15,306 There's doing things that test you, doing things that... 432 00:30:15,396 --> 00:30:16,476 -Yeah. -...are hard. 433 00:30:16,564 --> 00:30:19,534 You know? Really pushing beyond the boundaries of what you think 434 00:30:19,609 --> 00:30:21,649 -is possible. And that really is... -Yeah. And also a mental thing 435 00:30:21,778 --> 00:30:24,528 when you have to reeducate your mind, you have to change your mind to be like, 436 00:30:24,614 --> 00:30:27,664 "No. I just need to find a way to get through it." 437 00:30:27,742 --> 00:30:28,952 Yeah. 438 00:30:29,077 --> 00:30:32,657 You know, keep moving and don't sort of let things fall apart. 439 00:30:32,789 --> 00:30:38,289 Yeah. You wanna get every opportunity possible to live a longer, 440 00:30:38,461 --> 00:30:39,841 -healthier, happier life. And... -Yeah. 441 00:30:40,046 --> 00:30:45,966 And also not just living longer, but living longer and strong. 442 00:30:46,219 --> 00:30:48,639 Especially having kids, you wanna be able to play with the grandchildren 443 00:30:49,138 --> 00:30:51,348 -and still be active and... -Yeah. 444 00:30:51,474 --> 00:30:54,524 ...and run down in the snow, and jump in the ocean. You know? 445 00:30:54,602 --> 00:30:56,902 -The emotional strength that comes... -Yeah, there's a real sense of achievement 446 00:30:56,980 --> 00:30:58,190 -from doing that too. -Yeah. 447 00:30:58,273 --> 00:31:02,193 Just the reward from actually run through the snow and diving into this... 448 00:31:02,277 --> 00:31:03,647 -Yeah. -...you know, three degrees water... 449 00:31:03,736 --> 00:31:05,606 -I think it also... It's... Yeah. -...and running back again. 450 00:31:05,738 --> 00:31:07,948 And I do think there's something to what Ross is saying about just... 451 00:31:08,116 --> 00:31:11,576 We've just become far too comfortable in everything... 452 00:31:11,661 --> 00:31:12,831 -Yeah. -...the temperature of our house, 453 00:31:12,912 --> 00:31:14,372 -our clothing. We're not used to... -Yeah. 454 00:31:14,497 --> 00:31:17,747 ...any discomfort. And that initial handbrake is really 455 00:31:17,834 --> 00:31:20,754 an emotional response of your body trying to preserve itself. 456 00:31:21,045 --> 00:31:24,505 You know, whereas actually the body has a whole lot more in the tank... 457 00:31:24,591 --> 00:31:26,681 -Yeah. Yeah. -...and you just gotta get past that. 458 00:31:29,762 --> 00:31:32,562 I guess it’s easy to talk about embracing the cold 459 00:31:32,640 --> 00:31:33,850 when you’re sitting in a hot tub. 460 00:31:37,937 --> 00:31:41,397 In reality, this swim is gonna take it to another level. 461 00:31:43,985 --> 00:31:47,405 And if I’m honest, it’s a pretty daunting prospect. 462 00:31:57,290 --> 00:32:01,790 But for one community in Japan, the fact that the cold is daunting 463 00:32:02,170 --> 00:32:06,590 is the whole point and leads to benefits that go beyond the physical. 464 00:32:13,014 --> 00:32:14,394 MR. SHINBO: Entering the mountains 465 00:32:14,766 --> 00:32:20,306 you can test your capacity for all kinds of suffering. 466 00:32:30,698 --> 00:32:33,448 Becoming a Shugendo monk takes years of training. 467 00:32:35,244 --> 00:32:37,254 For some, it's a fresh start. 468 00:32:38,748 --> 00:32:42,588 Like Mr. Shinbo, who joined the order after the death of his wife. 469 00:32:43,878 --> 00:32:48,628 I couldn’t see the point in life anymore. 470 00:32:52,011 --> 00:32:54,391 I was in great distress. 471 00:32:55,473 --> 00:32:59,603 Then I encountered the Shugendo. 472 00:33:15,326 --> 00:33:17,036 Today, for the very first time, 473 00:33:17,620 --> 00:33:20,460 Mr. Shinbo faces a truly terrifying test. 474 00:33:29,507 --> 00:33:30,717 The waterfall. 475 00:33:32,301 --> 00:33:36,351 Fresh from the snowfields upstream, this torrent of meltwater 476 00:33:36,597 --> 00:33:39,057 is so cold it can cause heart failure. 477 00:33:54,657 --> 00:33:58,117 To pass, he needs to withstand this freezing cascade... 478 00:33:59,954 --> 00:34:02,374 -until his master is satisfied. 479 00:34:17,972 --> 00:34:21,182 MR. SHINBO: The effect of the cold water... 480 00:34:22,393 --> 00:34:25,483 is like an electric shock. 481 00:34:40,203 --> 00:34:46,423 MR. SHINBO: Putting yourself in a place where you feel fear. 482 00:34:46,834 --> 00:34:49,134 That’s the test. 483 00:34:55,885 --> 00:34:59,845 MR. SHINBO: There’s a story about baby eels. 484 00:35:02,141 --> 00:35:06,311 If you add a predator like a catfish to the tank... 485 00:35:07,230 --> 00:35:10,400 they say more of the young eels will survive. 486 00:35:17,782 --> 00:35:21,872 MR. SHINBO: Humans also excel in the face of adversity. 487 00:35:24,413 --> 00:35:27,083 That’s what we’re trying to achieve. 488 00:35:50,940 --> 00:35:55,320 MR. SHINBO: I have experienced huge trauma, 489 00:35:55,653 --> 00:35:58,823 but through these tests, I’ve come to terms with the past. 490 00:36:02,827 --> 00:36:05,907 If I met my younger self, I’d say, 491 00:36:06,164 --> 00:36:08,174 "It’s going to be all right." 492 00:36:08,332 --> 00:36:10,962 Even if you endure suffering, 493 00:36:11,085 --> 00:36:12,995 you’re going to be all right. 494 00:36:16,716 --> 00:36:18,506 I know extreme temperatures could help 495 00:36:18,593 --> 00:36:20,053 combat physical decline. 496 00:36:21,679 --> 00:36:25,429 But during a long life, there are bound to be mental challenges too. 497 00:36:27,476 --> 00:36:30,436 The Shugendo rituals show that confronting fear 498 00:36:30,855 --> 00:36:34,435 and enduring the cold can build a stronger mindset. 499 00:36:37,737 --> 00:36:40,277 To do it with such focus and such grace... 500 00:36:42,116 --> 00:36:43,486 that’s truly inspiring. 501 00:36:58,591 --> 00:37:01,931 -What happens if you don’t make it? -You’re gonna be there to fish me out! 502 00:37:02,053 --> 00:37:04,513 -Although, I’m not getting in. 503 00:37:05,181 --> 00:37:07,101 You know, it’s snowing right now, too? 504 00:37:07,266 --> 00:37:08,426 It is snowing, yeah. 505 00:37:08,935 --> 00:37:11,185 -Oh, good luck with that. -Thanks. 506 00:37:11,687 --> 00:37:13,017 -Exhilarating. -Yeah. Hmm. 507 00:37:15,483 --> 00:37:16,573 Yeah, I think I’ve lost my mind. 508 00:37:16,651 --> 00:37:18,071 -Yeah. 509 00:37:21,864 --> 00:37:23,874 My challenge is to reach that buoy. 510 00:37:25,243 --> 00:37:29,503 Two-hundred and fifty yards in water close to freezing. 511 00:37:33,584 --> 00:37:35,214 But I know why I’m here. 512 00:37:35,962 --> 00:37:39,882 Enduring extreme conditions could help me fight inflammaging, 513 00:37:40,299 --> 00:37:43,509 manage pain and boost my immune system. 514 00:37:45,346 --> 00:37:49,726 It can trigger repairs inside my cells, and even improve my mental wellbeing. 515 00:37:53,396 --> 00:37:55,396 So, it’s time to step up, 516 00:37:56,023 --> 00:37:57,823 and just get this thing done. 517 00:38:09,120 --> 00:38:11,960 -ROSS: Here we are. 518 00:38:13,416 --> 00:38:18,546 And I have got to admit, I'm nervous, because despite all the training, 519 00:38:19,046 --> 00:38:20,716 this is now uncharted territory... 520 00:38:21,549 --> 00:38:23,259 and so much could go wrong. 521 00:38:24,343 --> 00:38:26,553 -Hey, boys. How are ya? -Hi, Andy, safety team doctor. 522 00:38:26,637 --> 00:38:28,467 -I see, yeah. Hey, mate. -How you doing? I'm Tom. 523 00:38:28,556 --> 00:38:30,676 -Hi, Ross. How are you? -Andy, how are we, mate, we good? 524 00:38:30,766 --> 00:38:32,136 -You good? -Hey, mate, you all right? 525 00:38:32,727 --> 00:38:33,767 Oh, yeah! 526 00:38:34,895 --> 00:38:37,935 So, when you’re swimming, you’re gonna have a tow-float tied to you. 527 00:38:38,107 --> 00:38:40,437 And so, any issues, you can obviously just grab that and hold that. 528 00:38:40,901 --> 00:38:42,361 Do we have to have that or to... What? 529 00:38:42,570 --> 00:38:44,660 Yeah, I mean... And especially on ice swimming as well. 530 00:38:44,780 --> 00:38:47,200 It just means if something goes completely wrong and you go under, 531 00:38:47,325 --> 00:38:48,655 -you’re still attached to it... -Yeah. 532 00:38:48,743 --> 00:38:50,543 ...so we can then find you, we grab the float. 533 00:38:50,619 --> 00:38:53,289 Obviously, it’ll be a lot harder than anything you’ve done so far 534 00:38:53,456 --> 00:38:57,586 and your muscles are gonna get very stiff, cold, and you'll become uncoordinated. 535 00:38:58,210 --> 00:39:00,840 And when you get out of the water, we don’t want you to warm up too fast, 536 00:39:01,005 --> 00:39:04,375 because your limbs are gonna have lots of cold blood in, 537 00:39:04,633 --> 00:39:07,303 and if that all disappears back to your heart quickly, 538 00:39:07,386 --> 00:39:08,926 that can cause significant problems. 539 00:39:09,347 --> 00:39:11,057 So, we need to warm you up slowly and gradually. 540 00:39:11,640 --> 00:39:15,100 Please make no mistakes. It's a brutal swim. 541 00:39:15,353 --> 00:39:17,943 You’re gonna be gasping for air into a headwind. 542 00:39:18,064 --> 00:39:20,234 It’s literally coming straight down the barrel. 543 00:39:20,358 --> 00:39:22,028 -Hmm. -So, you’re gonna be pushing off there, 544 00:39:22,151 --> 00:39:23,531 gasp reflex, going, 545 00:39:23,778 --> 00:39:27,318 "Oh, good God, what’s going on?" So, if all of a sudden if I say, 546 00:39:27,490 --> 00:39:31,410 "Now, you’re coming out." Believe us. It'll be for your own safety. 547 00:39:32,870 --> 00:39:36,710 If you overegg this, if you push yourself beyond the point 548 00:39:36,791 --> 00:39:39,751 at which you should be coming out, there is a real risk you could die. 549 00:39:42,088 --> 00:39:43,208 Yep. 550 00:40:04,610 --> 00:40:07,490 -From here. Yeah. -Here? Right. 551 00:40:08,364 --> 00:40:10,284 That's where we switch it on now, okay? 552 00:40:14,120 --> 00:40:15,660 I mean, even having all these things in place 553 00:40:15,746 --> 00:40:17,116 and having the people around. 554 00:40:17,706 --> 00:40:18,706 I'm really nervous. 555 00:40:27,425 --> 00:40:29,135 There is a whole lot of weather coming 556 00:40:29,385 --> 00:40:31,295 and, you know, it’s quite choppy and windy. 557 00:40:35,850 --> 00:40:37,310 It's absolutely freezing cold. 558 00:40:40,271 --> 00:40:42,191 You know, the reality is really kicking in. 559 00:40:43,441 --> 00:40:45,651 Two minutes. Two minutes! 560 00:40:48,571 --> 00:40:51,571 I just want controlled and calm aggression. 561 00:40:51,740 --> 00:40:54,910 So, when you go in, you’re just so confident in every single one 562 00:40:54,994 --> 00:40:57,874 of your strokes. Overcoming that gasp reflex. 563 00:40:58,038 --> 00:41:01,498 There you go, there you go. There you go, there you go, there you go. 564 00:41:01,625 --> 00:41:03,245 Let’s go. Come on! 565 00:41:06,380 --> 00:41:08,720 -Yeah, mate. -Yes, Chris. 566 00:41:08,841 --> 00:41:10,551 The weather is getting worse by the second. 567 00:41:10,634 --> 00:41:11,724 Yeah. 568 00:41:12,803 --> 00:41:14,643 Yeah. That wind just picked up another ten knots. 569 00:41:14,847 --> 00:41:17,017 -Yes! It's getting wild. -It literally is. 570 00:41:18,517 --> 00:41:20,637 My brothers are there. They’re cheering me on. 571 00:41:21,479 --> 00:41:23,979 So, I kinda got to do it. 572 00:41:25,649 --> 00:41:27,529 Getting quite nervous now actually. 573 00:41:27,693 --> 00:41:30,493 -Heart rate's definitely coming up. -Suspense... is terrifying. 574 00:41:35,409 --> 00:41:37,539 CHRIS: But the biggest motivation of all... 575 00:41:38,662 --> 00:41:40,752 is that this isn’t a battle against the cold... 576 00:41:42,875 --> 00:41:45,785 it’s a chance to fight back against death and disease. 577 00:41:48,756 --> 00:41:51,626 A battle against what time can do to me. 578 00:41:53,469 --> 00:41:56,259 Focus on your breathing and your physiology will follow! 579 00:42:15,407 --> 00:42:16,487 Here he goes! 580 00:42:19,578 --> 00:42:22,668 That instant shock is just so intense. 581 00:42:23,666 --> 00:42:26,666 It’s far colder than anything that’s gone before. 582 00:42:27,253 --> 00:42:30,633 All I’m thinking is, "Get this over with as quickly as possible." 583 00:42:31,632 --> 00:42:33,012 And I just take off. 584 00:42:40,140 --> 00:42:41,810 -Almost there, mate! -Go on, Christo! 585 00:42:41,934 --> 00:42:43,024 Come on, mate! 586 00:42:44,520 --> 00:42:46,360 He’s doing really well. He’s keeping a good pace. 587 00:42:46,438 --> 00:42:47,818 -Yeah. -Ah, he’s killing it. 588 00:42:50,442 --> 00:42:52,112 But after ten strokes, 589 00:42:52,695 --> 00:42:56,615 it burns, it hurts. My head's thumping. 590 00:42:57,449 --> 00:43:00,909 My body is screaming, "This is crazy. What are you doing?" 591 00:43:02,121 --> 00:43:04,961 Good, Chris. Let's go! Let's go! Breathe! 592 00:43:05,874 --> 00:43:08,044 Come on! One arm after the other. Just focus on that. 593 00:43:08,127 --> 00:43:09,667 One arm after the other. 594 00:43:12,214 --> 00:43:15,974 And then the worst ice cream headache starts kicking in, 595 00:43:16,677 --> 00:43:18,217 and I’m starting to really feel the cold. 596 00:43:18,429 --> 00:43:20,639 -He’s slowing down. -Oh, no! 597 00:43:20,848 --> 00:43:22,848 Oh, come on, keep going. 598 00:43:26,186 --> 00:43:30,146 CHRIS: Then all of a sudden, my arms and legs feel like lead balloons. 599 00:43:31,025 --> 00:43:35,605 I’m completely off in my balance. And I just feel paralyzed. 600 00:43:36,864 --> 00:43:39,784 Chris, come on! Stay with me. Focus! 601 00:43:40,993 --> 00:43:44,463 There's sort of two voices that were very intense and loud. 602 00:43:46,123 --> 00:43:48,293 One was just saying to me, "You’re gonna die." 603 00:43:51,378 --> 00:43:52,758 -Let’s go, mate! -Come on. 604 00:43:55,090 --> 00:43:57,340 But the other voice is saying... 605 00:43:58,344 --> 00:44:00,684 -"No way!" -Come on, Chris. Go! 606 00:44:04,308 --> 00:44:07,018 And all of a sudden, you discover different parts of yourself. 607 00:44:11,732 --> 00:44:14,572 CHRIS: So, I block everything else out and I'm telling myself... 608 00:44:15,903 --> 00:44:17,283 "Just get out of here." 609 00:44:24,745 --> 00:44:28,365 Nice, nice! Let's go, big man. Let's go! 610 00:44:33,045 --> 00:44:35,875 -Go! Go! Head down! -Yeah, mate! Head down! 611 00:44:36,090 --> 00:44:37,720 -Oh, that's the spirit! 612 00:44:38,550 --> 00:44:41,390 Mind over matter. Mind over matter. Turn it into a fight. 613 00:44:44,556 --> 00:44:49,096 Last ten. Last ten! Finish this. Finish! 614 00:44:53,399 --> 00:44:56,069 -Yes! Yes! 615 00:44:56,193 --> 00:44:57,443 -Yes, big guy! 616 00:45:00,197 --> 00:45:04,117 Yes! Yes! Yes! Yes! You are an animal. 617 00:45:05,119 --> 00:45:07,789 -Yes, Christo! -Yeah, boy! 618 00:45:08,580 --> 00:45:11,420 -Yeah, yeah. Up you come, mate. Well done. 619 00:45:13,794 --> 00:45:16,214 Get here, get here, get here, get here, get here, get here, get here, get here. 620 00:45:17,339 --> 00:45:19,009 Wrap it round so we can-- Turn around, turn around. 621 00:45:19,091 --> 00:45:21,051 -Oh, I'm so dizzy. -Get in, get in. 622 00:45:24,596 --> 00:45:26,766 Yeah, we got gloves? Have we got some gloves? 623 00:45:28,726 --> 00:45:30,686 Get down, get down. Come on. Sit there, sit there. 624 00:45:31,353 --> 00:45:32,813 -Sit there, sit there, sit there, 625 00:45:32,896 --> 00:45:34,016 sit there, sit there, sit there. 626 00:45:34,273 --> 00:45:38,573 I’ve never felt like that before, physically and emotionally so challenging 627 00:45:38,694 --> 00:45:41,704 in such a short, concentrated period of time. 628 00:45:43,574 --> 00:45:46,374 -Yes! Yes! 629 00:45:46,660 --> 00:45:49,500 And it’s an experience that will stay with me forever. 630 00:45:49,997 --> 00:45:51,957 You did absolutely everything that I told you to do. 631 00:45:52,040 --> 00:45:53,500 You did it, and then some. 632 00:45:56,128 --> 00:45:58,798 CHRIS: And it did make me think how comfortable 633 00:45:58,881 --> 00:46:00,421 we’ve all become, in this day and age, 634 00:46:00,507 --> 00:46:03,177 and that we’re far more capable of doing things 635 00:46:03,302 --> 00:46:04,802 that we think are impossible. 636 00:46:05,554 --> 00:46:08,354 Chris, the cameras weren’t rolling. We need one more take, mate. 637 00:46:08,474 --> 00:46:10,774 -I am never doing that again! 638 00:46:10,934 --> 00:46:13,194 -We forgot to load the film. 639 00:46:15,939 --> 00:46:19,819 You know, we have an opportunity to live longer, better. 640 00:46:20,152 --> 00:46:21,202 Group hug, group hug! 641 00:46:21,862 --> 00:46:23,362 -Yeah! -You made it! 642 00:46:24,573 --> 00:46:26,873 Challenging my body with extreme temperatures... 643 00:46:28,285 --> 00:46:29,495 could help me get there. 644 00:46:30,370 --> 00:46:31,660 -They’re gonna defrost me now. -Yeah. 645 00:46:31,789 --> 00:46:32,829 -Yeah. -Yeah. 646 00:46:33,081 --> 00:46:34,631 CHRIS: I know my body can cope with it, 647 00:46:35,292 --> 00:46:39,212 and I am confident it's working its magic deep within my cells. 648 00:46:39,963 --> 00:46:41,133 We'll see you in the Caribbean. 649 00:46:41,215 --> 00:46:43,585 -I’m wintered. I’m wintered. I'm adapted. -Fully wintered. 650 00:46:43,759 --> 00:46:46,049 -You're fully wintered. Yes! 651 00:46:46,220 --> 00:46:47,760 -What a time. -Good job, mate. 652 00:46:47,930 --> 00:46:49,720 -What a time to be alive. -Yeah, boy. 653 00:46:51,058 --> 00:46:53,018 And the cold never bothered me anyway. 654 00:47:08,242 --> 00:47:10,292 Oh, my God. There you go.