Among Vitamins, D Seems Short for 'Does a Lot'

The easiest way to get vitamin D is from sunlight. The sun's ultraviolet rays react with skin cells to produce vitamin D. But many people worry about getting skin cancer and skin damage from the sun. As a result they cover their skin or wear sunblock or stay out of the sun.

And that's the VOA Special English Health Report, written by Caty Weaver. I'm Steve Ember.