夏说英文晨读：中年发福也许不能怪代谢 0824

Middle-aged spread cannot be blamed on a waning metabolism, according to an unprecedented analysis of the body's energy use.

The study, of 6,400 people, from eight days old up to age 95, in 29 countries, suggests the metabolism remains "rock solid" throughout mid-life.

It peaks at the age of one, is stable from 20 to 60 and then inexorably declines.

▍语言点

1. middle-aged spread 中年发福
· middle-aged adj. 中年的
· spread /spred/ v. 蔓延，扩散，伸展 n. 面积，宽度；(本节)体型
2. wane /weɪn/ v. 减弱，衰落(强调一种逐渐变弱的过程)
· waning metabolism 逐渐减弱的新陈代谢
· His interest in social media began to wane.
他对社交媒体的兴趣逐渐减弱。
· Her enthusiasm for the whole idea was waning rapidly.
她对整个想法的热情迅速冷淡了下来。
3. rock solid 非常稳固
· rock n. 岩石；solid adj. 坚硬的，可靠的
· The support for the party was rock solid.
这个政党得到了坚定的支持。
4. peak /piːk/ v. 达到顶峰，达到最高点。
· Official figures show that unemployment peaked in November.
官方数字显示，失业人数在11月达到最高点。
· Oil production peaked in the early 1980s.
20世纪80年代初期，石油产量达到了最高峰。