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    Four Reasons You'll Want to Exercise Now

    By By Diana Vilibert
    September 23, 2013, 10:22:20 AM EDT

    Lots of us are pretty great at coming up with reasons NOT to exercise—I’m too tired after work; it’s too hot out; it’s too cold out; they opened a Krispy Kreme next to my gym; all of my workout clothes perished in a tragic laundry “accident.”

    As for coming up for reasons to get moving? We’ve got that covered. The past few weeks have been chock-full of new studies and data extolling some pretty convincing new-found benefits of exercise. You might want to start lacing up as you read, and don’t even try to tell us that your dog ate your sneakers. We’re on to you.


    1. Exercise Helps Reverse Aging

    A recent study found that positive lifestyle changes like good diet and exercise habits can reverse the aging deep in our cells. It has to do with telomere length, the protective caps made of DNA and protein at the end of chromosomes that help protect a cell from aging. Telomeres become shorter and weaker over time, leading cells to age and die, and leaving you at increased risk for some cancers, osteoporosis, diabetes, and more. But the study found that a healthy diet and moderate exercise (walking 30 minutes a day, six days a week) lengthened oneÂ’s telomere length by 10 percent after five years. Telomere length was three percent shorter after five years in the study group that didnÂ’t make those lifestyle changes.

    2. Exercise Can Lessen Depression Symptoms

    There’s been a lot of research over the years on the link between exercise and depression, and a new review of studies published in the Cochrane Library looks promising. Exercise causes your pituitary gland to release endorphins to help ease your physical stress and pain while you work out—but those endorphins may have more long-term results too. A team that examined 39 past studies on depression and exercise (they included a total of 2,326 people with depression), found that exercise did indeed moderately benefit symptoms of depression.

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