随着年龄的增长,要想保持健美的身段,确乎日益困难。要是只有19岁,一周的均衡膳食,几天的社交舞会,2公斤多余的重量便冰雪消融,挥之即去;而到了39岁,同样的2公斤重量就会“依依不舍”岿然不动。对于大多数人来说,体重总是随年龄增长而增加,25岁以后平均每年增加半公斤。更有甚者,新增的重量主要不再是肌 As we grow older, it is becoming increasingly difficult to maintain a fit body. If only 19 years of age, a week of balanced diet, a few days of social dance, 2 kg of excess weight will melt away, and immediately go; and by the age of 39, the same 2 kg weight will “reluctantly” . For most people, weight always increases with age, with an average increase of half a kilogram after 25 years of age. What is more, the new weight is no longer the main muscle