Kids' genes, environment affect sleep differently

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Kids' genes, environment affect sleep differently

<p><a href="http://news.yahoo.com/kids-genes-environment-affect-sleep-differently-041243139.html"><img src="http://l1.yimg.com/bt/api/res/1.2/piAbSnm84uTUgwrZs1kGiQ--/YXBwaWQ9eW5ld3M7Zmk9ZmlsbDtoPTg2O3E9ODU7dz0xMzA-/http://media.zenfs.com/en_us/News/Reuters/2013-05-27T041243Z_1_CBRE94Q0BPC00_RTROPTP_2_USA-RETAIL-HOLIDAY-THANKSGIVING.JPG" width="130" height="86" alt="Shawna Ellis cradles her son while waiting in line for a computer to go on sale at WalMart on the Thanksgiving Day holiday in Salem" align="left" title="Shawna Ellis cradles her son while waiting in line for a computer to go on sale at WalMart on the Thanksgiving Day holiday in Salem" border="0" /></a>By Genevra Pittman NEW YORK (Reuters Health) - A new study based on pairs of Canadian twins suggests that genetics play a strong role in how long kids sleep at night, but their environment may be more important for afternoon naps. Researchers compared sleep patterns for close to 500 sets of identical or fraternal twins. They found that especially as kids got older, environmental influences - which include when parents put kids in bed, for example - explained more and more of their napping differences. ...</p><br clear="all"/>

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