超过一半的美国大公司提议员工戒烟、挑战松弛的肌肉，超过三分之一的大公司有健身房。
More than half of America's larger companies offer advice on stopping smoking and fighting flab. More than a third have gyms.
打呼是有几方面的因素造成的，但是罪魁祸首是喉管内过份松弛的肌肉和组织，在狭窄的呼吸道内发出声响。
Snoring is caused by a few things, but the biggest culprit is a vibration of very relaxed muscles and tissues in the throat, which rattle against narrow breathing passages.
按摩使得我背部紧张的肌肉松弛下来。
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