家住七楼,最早的时候,我们将每天爬楼梯当成强使自己健身的方式。但是,后来听一位当医生的朋友说,爬楼梯太多其实不好。人的膝盖弯曲次数是相对固定的,不会因为你要锻炼,或者锻炼得很好,而相应延长寿命。人体膝盖的结构如同一部机器中的那些易损零件,用一次,就会多一丝磨损,并且这种磨损是不能再生的……自那以后再爬楼梯时,便会情不自禁地在心里想这事,甚至下意识地走得慢一些,不使用那种剧烈的动作,免得加重膝盖的磨损。 Living on the seventh floor, the earliest time, we will climb the stairs every day as a way to strengthen their fitness. However, later listening to a friend who was a doctor said climbing the stairs was not good at all. The number of knee flexures in a person is relatively constant, not prolonged because of the need to exercise or to exercise well. The body’s knees are structured like those delicate parts of a machine, and they wear out more than once, and the wear can not be regenerated ... Since then, when you climb the stairs, you can not help but think about it in your heart Things, even subconsciously go slower, do not use that kind of violent action, so as not to aggravate the knee wear.