Why do we have to wear sunscreen? - Kevin P. Boyd

View full lesson: http://ed.ted.com/lessons/why-do-we-have-to-wear-sunscreen-kevin-p-boydYou already know that a trip to the beach can give you a nasty sunburn, but the nitty gritty of sun safety is actually much more complex. Wrinkle-causing UVA rays and burn-inducing UVB's can pose a serious risk to your health (and good looks). So what can you do? Kevin P. Boyd makes the case to slap on some physical or chemical SPF daily. Lesson by Kevin P. Boyd, animation by Andrew Foerster. Learn more about your ad choices. Visit megaphone.fm/adchoices