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Health Headlines: Exercise, Aging, and Turning Silver

I must admit I get excited when the word exercise appears in news headlines, and I've found several so far this week that caught my eye. Here are a few news stories that take us on a journey through life, from fitness to gray hair.

The Claim: Exercise More During the Day, and You Will Sleep Better at Night
New York Times
Falling asleep on the coach at 9 p.m. last night, a few hours after an intense workout, I wouldn't question the notion that rigorous exercise makes for better sleep. If you're incredulous, check out the article. If you suffer from insomnia, chances are high the studies quoted in it will have you lacing up your sneakers.

Exercise Prevents Aging of Cells
LiveScience
Regular exercise is known to help prevent many age-related health issues, but it looks like working out works on a cellular level too. The manner in which exercise protects DNA has been likened to "turning back the biological clock."

Genes Rather Than Stress "Makes Women's Hair Go Gray"
BBC
Aging and gray hair go together, and I always thought that stress unfortunately helped the process along. After looking at the heads of many twins, both identical and fraternal, researchers concluded that that genes, not lifestyle, are the main factor in turning silver.

Source: Getty
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