Study shows the benefits of not over- or under-sleeping

[riky]

Study shows the benefits of not over- or under-sleeping

<p><a href="http://news.yahoo.com/study-shows-benefits-not-over-under-sleeping-154541726.html"><img src="http://l1.yimg.com/bt/api/res/1.2/Nw5mCwyj.MKsAmRmnn8BNA--/YXBwaWQ9eW5ld3M7Zmk9ZmlsbDtoPTg2O3E9NzU7dz0xMzA-/http://media.zenfs.com/en_US/News/US-AFPRelax/shutterstock_31.0d7dc114741.original.jpg" width="130" height="86" alt="Study shows the benefits of not over- or under-sleeping" align="left" title="Study shows the benefits of not over- or under-sleeping" border="0" /></a>Getting too little and too much sleep are associated with health risks, a new study finds. Best advice: aim for the sweet spot, between seven to nine hours a night.</p><br clear="all"/>

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