A gentle rocking motion makes people fall asleep faster. And they sleep more deeply, their brains waves show. Swiss researchers say the changes in brain activity are a surprise.
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Read the complete post at http://www.npr.org/blogs/health/2011/06/20/137300311/why-hammocks-make-sleep-easier-deeper?ft=1&f=103537970
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Jun 20 2011, 12:05 PM
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