Sensory deprivation tanks, oxygen therapy chambers and unbelievably cold saunas - oh my! These machines are used to reduce stress, ease pain and could be useful in doing that, but these machines are generally meant to be used in very specific situations. Hosted by: Hank Green ---------- Support SciShow by becoming a patron on Patreon: https://www.patreon.com/scishow ---------- Dooblydoo thanks go to the following Patreon supporters -- we couldn't make SciShow without them! Shout out to Bryce Daifuku, Kevin Bealer, Justin Lentz, Mark Terrio-Cameron, Patrick Merrithew, Accalia Elementia, Fatima Iqbal, Benny, Kyle Anderson, Mike Frayn, Tim Curwick, Will and Sonja Marple, Philippe von Bergen, Chris Peters, Kathy Philip, Patrick D. Ashmore, Thomas J., Charles George, Bader AlGhamdi. ---------- Like SciShow? Want to help support us, and also get things to put on your walls, cover your torso and hold your liquids? Check out our awesome products over at DFTBA Records: http://dftba.com/scishow ---------- Looking for SciShow elsewhere on the internet? Facebook: http://www.facebook.com/scishow Twitter: http://www.twitter.com/scishow Tumblr: http://scishow.tumblr.com Instagram: http://instagram.com/thescishow ---------- Sources: http://www.sciencedirect.com/science/article/pii/0301051194900299 http://blogs.discovermagazine.com/crux/2014/04/04/floating-away-the-science-of-sensory-deprivation-therapy/#.V74BbpgrKM9 http://www.ncbi.nlm.nih.gov/pubmed/11854763 http://www.ncbi.nlm.nih.gov/pubmed/16341307 http://www.behavior.org/resources/677.pdf https://www.researchgate.net/publication/282342776_Using_hyperbaric_oxygen_for_autism_treatment_A_review_and_discussion_of_literature https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4971045/ http://www.ncbi.nlm.nih.gov/pubmed/23682728 http://onlinelibrary.wiley.com/doi/10.1002/14651858.CD010789.pub2/abstract http://www.wired.com/2013/02/ff-cold-weight-loss/ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3895006/ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4008632/ http://www.austin360.com/news/lifestyles/recreation/cryochamber-more-comfortable-than-an-ice-bath-bu-2/nRbQH/ https://www.cooperinstitute.org/2013/09/whole-body-cryotherapy-wbc-does-it-speed-recovery/ http://www.wired.com/2013/02/ff-cold-weight-loss/ http://www.hyperbariclink.com/diseases-and-conditions/decompression-sickness.aspx#.V8RBu5grKM8 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4586380/ http://www.ncbi.nlm.nih.gov/pubmed/27396361 Images: https://en.wikipedia.org/wiki/Isolation_tank#/media/File:I-sopod_Flotation_Tank.jpg https://en.wikipedia.org/wiki/Decompression_sickness#/media/File:Decompression_chamber.jpg https://commons.wikimedia.org/wiki/File:ARDS_X-Ray.jpg https://en.wikipedia.org/wiki/Cryotherapy#/media/File:Cryosauna_Bamboo.png https://en.wikipedia.org/wiki/Brown_adipose_tissue#/media/File:Brownfat_PETCT.jpg