A new study suggests that Americans could lengthen their life expectancy, simply by putting down the remote control, and getting off the couch.
The study found that cutting down TV watching to fewer than two hours each day would bump life expectancy up by another 1.4 years.
Exercise is a good thing, and getting the amount recommended by groups like the CDC, the American Heart Association and the National Cancer Institute -- 30 minutes of moderate to vigorous exercise five times each week -- is a vital part of staying healthy.
The study was published in the British Medical Journal.
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