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Rx: Get more Z's
Not getting enough shut-eye will not only make you tired - it could also raise your risk of high blood pressure, diabetes and obesity. And it accelerates aging.

Plus, an insomniac's health-care costs can be $4,200 more than those of someone who sleeps well, according to research from the journal Sleep.

Aim for seven to nine hours. Go to bed and wake up at the same times every day. Turn off the TV an hour before bed. And make up big losses ASAP.

NEXT: Rx: Go for a walk

Last updated August 04 2008: 6:13 PM ET
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