“春眠不觉晓,处处闻啼鸟。夜来风雨声,花落知多少(唐·孟浩然·《春晓》)”。的确,春光明媚,气温和暖,天地间洋溢着蓬勃的气象。这时人体周身气血和活,血脉通畅,阳气升发,常易感到和暖欲眠,因而,晨睡常会使人不觉晓。然而,古人春日“养生”提倡“春三月……夜卧早起,广步于庭,被发缓形,以使志生”。可振奋人体阳气,增强体质,抗御病邪,免遭自然界中病原微生物等的侵害。故春日养生主张“觉晓”早 “Spring sleep do not know dawn, smell the birds everywhere. Night rain and wind, flowers know how much (Don Meng Hao Ran” Chunxiao “). Indeed, the spring is bright, warm and warm, filled with a vibrant atmosphere between heaven and earth. At this time the body of the whole body blood and blood, blood smooth, yang, often easy to feel and warm to sleep, therefore, morning sleep often make people feel dawn. However, the ancients spring day ”health “ advocated ”spring March ... night get up early, wide in the court, was slow-release, so that students.“ Can inspire the human body yang, enhance physical fitness, resist evil, from the pathogenic microorganisms in nature and other violations. Therefore, the spring health advocate ”consciousness Xiao " early