SLEEP AND ITS CAUSE.

Auckland Star, Volume LXII, Issue 264, 7 November 1931, Page 7 (Supplement)

SLEEP AND ITS CAUSE.

PHENOMENA NOTED.

What is the cause of sleep? The question long puzzled scientists. One theory 13 that sleep is due to complete muscular c tion, either voluntary or involuntary, "lea a person lies down, the visual sensations become monotonous, and muscular reaction, removing the impulses which usually pour into the brain from the muscles, tendons and joints, precipitates the condition called sleep. If one M'ishes to sleep it is a mistake jo tire oneself' by excessive exercise in to hope of exhausting oneself into slumIt is also a waste of time to place f " o t-\vater bottle at one's feet in the ?°P. e of "drawing the blood from the Main."

Sleep is n o £ to anaemia of the following fatigue at the end of a J^ 5 exertions. According to scientists, nM>r* S excess rather than a deiicit blood in the brain during sleep. Experiments have also tended to controvert • , e theory that sleep is due to "autooxication with fatigue products." alt v een P rove< i that blood sugar, Kl V. S e rve the blood and plasma tli \f 5d the red particles of atm f are sus P e nded), body weight, let? temperature, ability to name jo ers . do mental arithmetic, display from normal during a period cf s leeple ssiless .