Spending time outdoors is good for you, from the Harvard Health Letter

Summer is here. The outdoors beckons. Heed that call and you'll reap physical and mental health benefits, reports the July 2010 issue of the Harvard Health Letter. Here are five good reasons to get outdoors: Your vitamin D levels rise. Sunlight hitting the skin begins a process that leads to the creation and activation of vitamin D. Studies suggest that this vitamin helps fight certain conditions, from osteoporosis and cancer to depression and heart attacks. Limited sun exposure (don't overdo it), supplemented with vitamin D pills if necessary, is a good regimen. You'll get more exercise. If you make getting outside a goal, that should mean less time in front of the television and computer and more time walking and doing other things that put the body in motion.
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