1 00:00:02,040 --> 00:00:07,120 Speaker 1: Welcome to brain stuff from How Stuff Works. Hey, they're 2 00:00:07,120 --> 00:00:10,200 Speaker 1: brain stuff, Lauren Bogo bam here. Some like their yoga 3 00:00:10,240 --> 00:00:12,840 Speaker 1: hot a hundred and five degrees fahrenheit or forty degrees 4 00:00:12,880 --> 00:00:15,680 Speaker 1: celsius to be exact, but according to a study published 5 00:00:15,680 --> 00:00:19,079 Speaker 1: in the journal Experimental Physiology, heat might have nothing to 6 00:00:19,120 --> 00:00:22,600 Speaker 1: do with the style's health benefits. Yoga is an ancient 7 00:00:22,680 --> 00:00:26,000 Speaker 1: Indian practice. It dates back thousands of years. As William J. 8 00:00:26,160 --> 00:00:29,320 Speaker 1: Brad describes in the Science of Yoga The Risks of Rewards. 9 00:00:29,320 --> 00:00:32,559 Speaker 1: Its roots lay in quote an obscure cult steeped in 10 00:00:32,600 --> 00:00:36,280 Speaker 1: magic and eroticism, but the practice has evolved over time, 11 00:00:36,520 --> 00:00:39,240 Speaker 1: reaching the West in the mid nineteenth century and exploding 12 00:00:39,240 --> 00:00:42,200 Speaker 1: in America during the nineteen sixties. Today, you'll find everything 13 00:00:42,240 --> 00:00:45,479 Speaker 1: from spiritual yoga practices that invoke can do traditions to 14 00:00:45,680 --> 00:00:49,159 Speaker 1: secularized models that target everyone from pro wrestling fans to 15 00:00:49,440 --> 00:00:53,240 Speaker 1: death metal heads. And then there's hot yoga, most notably 16 00:00:53,240 --> 00:00:56,360 Speaker 1: Bickram Yoga, founded by Calcutta born Bickram Chowdery in the 17 00:00:56,480 --> 00:01:00,200 Speaker 1: nineteen seventies. Bickroom Yoga centers around twenty six poses or 18 00:01:00,240 --> 00:01:04,520 Speaker 1: asanas performed in a precisely heated forty six community studio 19 00:01:04,760 --> 00:01:08,360 Speaker 1: for around ninety minutes of sweaty action. The official Bickram 20 00:01:08,400 --> 00:01:11,319 Speaker 1: Yoga website claims that the heat helps you practice your 21 00:01:11,319 --> 00:01:15,440 Speaker 1: postures optimally. But while critics have previously raised concerns over 22 00:01:15,480 --> 00:01:19,240 Speaker 1: elevated body temperatures, no study has actually isolated the effects 23 00:01:19,240 --> 00:01:22,480 Speaker 1: of heat in the practice. That's according to the authors 24 00:01:22,480 --> 00:01:25,839 Speaker 1: of the aforementioned study, carried out at Texas State University 25 00:01:25,880 --> 00:01:28,720 Speaker 1: and the University of Texas at Austin. They brought in 26 00:01:28,800 --> 00:01:31,920 Speaker 1: eighty study participants, ages forty to sixty, all of whom 27 00:01:31,959 --> 00:01:35,480 Speaker 1: had lived sedentary lifestyles for at least six months following 28 00:01:35,480 --> 00:01:39,039 Speaker 1: health screenings. They randomized the participants into three groups, a 29 00:01:39,160 --> 00:01:43,039 Speaker 1: thermonutral group, a heated group, and a control group. For 30 00:01:43,160 --> 00:01:46,160 Speaker 1: twelve weeks, the heated group attended three Bikram Yoga classes 31 00:01:46,200 --> 00:01:49,120 Speaker 1: a week in a traditional hot room, while the thermoneutral 32 00:01:49,160 --> 00:01:51,760 Speaker 1: group attended the same number of classes only under you 33 00:01:51,840 --> 00:01:55,280 Speaker 1: guessed at room temperature conditions that's seventy three degrees fahrenheit 34 00:01:55,360 --> 00:01:58,680 Speaker 1: or about twenty three degrees celsius. The control group did nothing. 35 00:01:59,480 --> 00:02:02,160 Speaker 1: In the end, fifty of the eighty two subjects completed 36 00:02:02,200 --> 00:02:05,760 Speaker 1: the interventions. And return for follow up testing nineteen hot, 37 00:02:06,120 --> 00:02:10,440 Speaker 1: fourteen thermo neutral, and nineteen control. The researchers compared their 38 00:02:10,480 --> 00:02:13,480 Speaker 1: findings and determined the Bickroom yoga can reduce changes in 39 00:02:13,520 --> 00:02:16,080 Speaker 1: blood vessel lining linked to heart disease, and that it 40 00:02:16,080 --> 00:02:18,800 Speaker 1: can possibly delay the build up of arterial plaque, which 41 00:02:18,840 --> 00:02:21,880 Speaker 1: can lead to heart attack or stroke. But here's the kicker. 42 00:02:22,160 --> 00:02:24,679 Speaker 1: The benefits were present in both the heat and room 43 00:02:24,720 --> 00:02:28,560 Speaker 1: temperature groups, indicating that heated rooms that Bickroom calls torture 44 00:02:28,639 --> 00:02:32,200 Speaker 1: chambers don't actually make a difference. That being said, many 45 00:02:32,280 --> 00:02:35,920 Speaker 1: yoga practitioners do like it hot and sweaty, even amid 46 00:02:36,040 --> 00:02:39,880 Speaker 1: legal scandals surrounding its founder. Bickram Yoga boasts studios around 47 00:02:39,880 --> 00:02:42,520 Speaker 1: the world, and that's in addition to various other non 48 00:02:42,560 --> 00:02:46,520 Speaker 1: affiliated hot yoga styles. If these latest findings hold true, however, 49 00:02:46,840 --> 00:02:48,760 Speaker 1: that hot room might be no more essential to the 50 00:02:48,760 --> 00:02:51,960 Speaker 1: practice than an iPod shuffle full of the traditional Kurton 51 00:02:52,120 --> 00:03:00,240 Speaker 1: music or Campble corpse. Take a pick Today's So It 52 00:03:00,280 --> 00:03:02,640 Speaker 1: was written by Robert Lamb and produced by Tristan McNeil. 53 00:03:02,919 --> 00:03:04,920 Speaker 1: For more on this and lots of other hot topics, 54 00:03:05,000 --> 00:03:18,960 Speaker 1: visit our home planet tostof works dot com,