“…just for cosmetic purposes like to be protected from the sun. I used to sunburn terribly from, I guess, my 20s through my 60s. At 7,000 feet altitude, I found that I didn't sunburn at all. I could work outside for hours without turning bright red. And I've heard other people say that when they take vitamin D, they can then expose themselves to the sun without burning or even just a moderate degree of tanning. So if you are avoiding the sunlight for some reason, then you absolutely need to supplement”