Why strangely difficult to sleep beds?Many people often feel difficult to sleep when sleeping in a strange place, a strange, especially in bed the first night.Researchers at Brown UNIVERSITY (USA) has to find out the reason. The results are published in the journal Current Biology.The researchers conducted three tests on the 35 young people, healthy and measured their brain activity in two consecutive nights sleep in a strange place. Results, the left part of the brain more active in the first night's sleep than sleep Monday night. Explain this, Sasaki Yuka research that when sleeping the first night in a strange place, a part of the brain will be in a State of consciousness with the purpose of vigilance, the broth can wake sleeping people to quickly and easily when necessary or in danger.Many people often feel difficult to sleep when sleeping in a strange place, a strange, especially in bed the first night. (Artwork)To find out the cause, the researchers performed a number of tests. They stimulate the left brain hemisphere by the cries of the right ears beep beep slept the first night, then noticed they quickly wake than when stimulating right brain hemispheres by beep beep on the left ear. This difference does not occur during the night sleep Monday. This conclusion is only true with people who have normal sleeping habits, not insomnia or other sleep disorders.The condition of the brain during sleep also occur in animals. Some species of birds and several species of marine mammals also sleep habits with one eye.
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