'Sun isn' presentation slideshows

What You Need to Know About Cholesterol Screening

Vitamin D is produced naturally through our skin when we're out in the sun. Years ago, most of us got all the vitamin D we needed without even thinking about it since outdoors is where we worked and played. But these days, more of our daily activities take place indoors.When we do venture out, we slather on sunscreen to protect ourselves from the sun's damaging rays, which also blocks vitamin D production. People living in northern latitudes where the sun isn't as plentiful also have reason to be concerned, as do:

23 views • 1 slides