Sunburn, Sweat and the Summer Science Explained!

PBS Member Stations rely on viewers like you. To support your local station, go to: http://to.pbs.org/DonateOKAY ↓ More info and sources below ↓ A summertime look at why we sweat, why we burn, and why our fingers wrinkle in the pool. References/further reading: Eccrine and apocrine sweat glands: https://www.inkling.com/read/dermatology-bolognia-jorizzo-schaffer-3rd/chapter-35/eccrine-apocrine-and-apoeccrine "Are Wet-Induced Wrinkled Fingers Primate Rain Treads?" M. Changizi et al, Brain Behav Evol 2011 http://www.karger.com/Article/FullText/328223 (Not everyone agrees with the rain tread hypothesis, though: http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0084949) Sunburn/UV light triggers immune response: http://www.nature.com/nm/journal/v18/n8/full/nm.2861.html UV-A rays and Unilateral Dermoheliosis (the truck driver's face) http://www.nejm.org/doi/full/10.1056/NEJMicm1104059 DNA damage and repair and their role in carcinogenesis http://www.ncbi.nlm.nih.gov/books/NBK21554/ Joe Hanson - Host and writer Joe Nicolosi - Director Amanda Fox - Producer, Spotzen IncKate Eads - Associate Producer Editing/Motion Graphics - Andrew Matthews Gaffer - John Knudsen Theme music: "Ouroboros" by Kevin MacLeod Stock images via Shutterstock Produced for PBS Digital Studios ----------- Join us on Patreon! https://patreon.com/itsokaytobesmart Twitter http://www.twitter.com/DrJoeHanson http://www.twitter.com/okaytobesmart Instagram http://www.instagram.com/DrJoeHanson http://www.instagram.com/okaytobesmart Merch https://store.dftba.com/collections/its-okay-to-be-smart Facebook https://www.facebook.com/itsokaytobesmartpbs/​ Learn more about your ad choices. Visit megaphone.fm/adchoices