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Show Exercise and Study Do Not Affect Child's Sleep The question of whether or not extremely ex-tremely active play or concentrated study by a child shortly before retiring re-tiring affects the child's sleep need not trouble mothers and teachers any longer for It Is answered with authority by Dr. Glenville GIddlngs In "Your Child's Sleep," an article In Hygela. The sleep patterns of a group of twelve children were recorded by an electric device on nights when they had participated In these activities and on normal nights. Comparison of the sleep patterns of the two periods pe-riods showed conclusively, the author au-thor says, that Intensive study of their school lessons or Intensive , physical exercise in the late afternoon after-noon or early evening by normal children has no appreciable effect on their sleep. |