Post Originals  ·   August 20, 2014

How sunlight affects your health

- One of the best known benefits of sunlight is its ability to boost the body's vitamin D supply, but what happens when you can't get outside in the sun? George Washington University's Dr. Michael Irwig explains how sunlight, or lack of it, can affect a person's health. ()

- One of the best known benefits of sunlight is its ability to boost the body's vitamin D supply, but what happens when you can't get outside in the sun? George Washington University's Dr. Michael Irwig explains how sunlight, or lack of it, can affect a person's health. ()

How sunlight affects your health (2:26)

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