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Don't downvote OP, it's a very legitimate question. Medias tend to represent everything as black and white, and so it's easy to get confused, espacially since
by sametmax 8y ago
Don't downvote OP, it's a very legitimate question.
Medias tend to represent everything as black and white, and so it's easy to get confused, espacially since people will tell you everything then the contrary depending of the fashion of the day.
It's always nice to have those moments, when you can highlight that reality has nuances. Let's encourage people asking for answers, we don't have enough of them.
And yes, Vitamin D is required, not UVB. You can aquired vitamin D by eating organisms full of it. But the most efficient way is still to get exposed to sunlight. It's partly why some get depressed in the winter.
The sun is not "bad for the skin" any more than a cold water is bad for your health. But stay in it too long and you may die.
- iguy 8y ago> And yes, Vitamin D is required, not UVB. You can aquired vitamin D by eating ... There is some debate about this now, while sunlight certainly produces vitamin D, that's certainly not all that it does. This article showed up here recently: https://www.outsideonline.com/2380751/sunscreen-sun-exposure-skin-cancer-science https://www.outsideonline.com/2380751/sunscreen-sun-exposure...
- sametmax 8y agoOf course, but sunlight is not just UVB. Plus, the spectrum of one component is hardly what define light interraction. The many spectrums + quantity + intensity + the human receiving is a more interesting model. E.G: I just bought a light to help with the winter blues. It does not provide any UVB, so the method of action is something else.