许多人认为人到60岁就步入老年期,一系列退行性的生理变化由此开始。其实这种观点不够准确。就拿人的听觉、嗅觉和味觉来说吧,它们的变化早就开始了。 听力虽有个体差异,但一般认为人从20多岁开始听力就逐渐缓慢地减退,首先是对高音域的听力减退,随年龄的增加,中、低音域的听力亦逐渐下降。有学者对360 Many people think that when people reach the age of 60, they will start a series of degenerative physiological changes. In fact, this view is not accurate enough. Take people’s hearing, smell and taste, for example, their changes have long since begun. Although individual differences in hearing, but generally believed that people from the twenties began to gradually slow down the hearing, the first is the hearing loss in the high-range, with age, hearing in middle and low bass range also decreased. Some scholars on the 360