Rapid eye movement (REM) sleep brings about brief but periodic awakenings. In 1966, Dr. Frederick Snyder reported the "sentinel" function of REM could help animals prepare a fight or flight response ...
Elephant seals drift downwards in a "sleep spiral" when deep diving in the ocean, a new study found. Sleeping while deep diving allows the seals to avoid predators, scientists believe. The scientists ...
Is anything more heartwarming than a cat curled by your side or nestled by your legs? Well, other than your cat winking at you or its playful nature when faced with its elusive enemy, the ...
It has long been hypothesized that REM sleep and the stress response are linked, until now the mechanism has been unknown and might shed light on some mood disorder treatments. Everybody hurts after a ...
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