医学研究表明,睡眠具有明显的治病功效。美国医学专家认为,人在睡眠时,体内的微生物制造出一种叫“胞壁酸”的物质,既能促进睡眠,又能增强机体免疫功能。当睡眠不足时,机体抵抗力下降,易受细菌、病毒的感染或受其他致病因素的影响而致病。患上感冒的人,常有发烧怕冷的症状,发烧是机体抵抗细菌或病毒的防御反应,也能促使体 Medical research shows that sleep has obvious therapeutic effect. American medical experts believe that when people sleep, the body’s micro-organisms create a called “muramic acid ” material, both to promote sleep, but also enhance the body’s immune function. When lack of sleep, the body’s resistance decreased, susceptible to bacteria, viruses or other pathogenic factors caused by the disease. People suffering from a cold, often cold symptoms of fever, fever is the body’s defense against bacteria or viruses, but also to promote the body