人的一生有一半时间是在居室中度过的 ,退休后的老年人在室内的时间更长。良好的住宅有益于健康和长寿 ,而不良的住宅则有损于健康 ,降低身体抵抗力 ,甚至引起疾病。例如 :拥挤的住宅会使呼吸道、消化道疾病的发病率增高 ;潮湿的住宅使人易患感冒、风湿性关节炎等 ;阴暗的住宅 Half of one’s life is spent in the living room, and the retired one is living indoors longer. Good dwellings are good for health and longevity, while bad dwellings are detrimental to health, reducing body resistance and even causing illness. For example: crowded residential buildings will increase the incidence of respiratory, gastrointestinal diseases; wet residential makes people susceptible to colds, rheumatoid arthritis, etc .; dark residential