:   ̼ ѿ ϴ... Ѵ
û 湮 ۵ȴ. ̼ 󵵴 , Ѵ ѿ ϴ Ȯ ־. ߱ ũ⿡ ̼ ʹ̼ Ѵ. ̼ 10 ũ⺸ , ׺ ʹ̼ ũⰡ 2.5 δ .



 Ǿ  , ̼ ٽ ̴



̼ ʹ̼ Ȳ꿰, 꿰, ϸϾ ̿ а ߱ݼ ̷ ִٴ ̴. Ư ũⰡ ſ ʹ̼ 쿡 ɷ ʰ ٷ ӿ Ǿ ȯ õ, ȯڿ ġ̴.̿ܿ ̼ ü ׿ ȭ ֹ Ȱ ȭƮ 索 ưȭ ȯ ɺ ȯ ȭų ִ. ̻Ӹ ƴϴ. ̼ ū ģ. ̱ б(University of Washington, Seattle) (Martha Billings) ̲ , ʹ̼ ϼ ȿ(sleep efficiency) ϱ Ÿ. ʹ̼ 踦 ˾Ƴ 5 ̱ 6 ÿ ù 1,863 ߴ. , ̼ ſ ϴ ׷ ȿ ũ Ҵ. Ư, ̻ȭҿ ȿ 60% ü ǥ Ѿ, ̼ ̻ ȿ ſ . "̻ȭҿ ̼ ɼ ſ " ߴ. "̼ ڿ κ ɿ ǿ ֱ , ߺ ų ִ" ߴ.



̼ غ

ѹα ̼ 躸DZⱸ(WHO, World health organization) ǰ 3 ̸̻, ε ڰ þ ִ. ̴ ä ̼ غϴ ִ Ҹ Ұߴ. ƿ̼ ִ ߱ݼ صϴ ش. ,  Ǿ ִ. Ƿ긮Ƿ긮 ӿ ʼ ƹ̳ Ÿ, ̳׶ dzϰ ִ. ̼ ׻ȭ ڽþƴ ص ־, ü ̼ ش. ö󺸳̵׿ ױۿ پ õ ׻ Ҹ ö󺸳̵ ϰ äҿ ִ. ǥ ݸ, ڻ, , Ǹ, 纣 ִ.



= ̴ ä

: Ÿ츰 dz ǰ Ź...3 ö ֲٹ̡
: 塯 츮