Pay special attention to your left arm and cheek since they get more sun exposure than the rest of your body. (gulfcoastford.com)
A person with dark skin, for example, may need as much as ten times more sun exposure to produce the same amount of vitamin D as a person with pale skin. (articles.mercola.com)
With better weather comes a growing desire to be outside as much as possible, which, of course, means more sun exposure. (wetheparents.org)