词爹双语阅读：exercise and longevityExercise and longevity
锻炼与长寿
Worth all the sweat
出点汗，值了！
Just why exercise is so good for people is, at last, being understood
为什么锻炼有利于身体健康呢，人们终于知道答案了
ONE sure giveaway of quack medicine is the claim that a product can treat any ailment.
有一种绝对能推销出去狗皮膏药的方法就是说它包治百病。
There are, sadly, no panaceas.
遗憾的是灵丹妙药并不存在。
But some things come close, and exercise is one of them.
但有些方法却起到类似的作用，锻炼就是其中之一。
As doctors never tire of reminding people, exercise protects against a host of illnesses,
医生