There are caveats, of course. Exercising on an empty stomach is unlikely to improve your performance during that workout.

当然，需要注意的是，运动过程中空腹锻炼不可能提高运动效果。

blog.sina.com.cn

She says: 'I workout regularly and eat well, but the bulge of fat on my lower stomach area just doesn't respond to exercise, so this treatment seemed perfect for me.'

她表示：“我定期锻炼身体，在饮食上也较为注意，但小腹上的脂肪就是减不下去，怎么锻炼都不行。这种疗法对我来说似乎再理想不过。”

article.yeeyan.org

Second, when you laugh, you work stomach, legs, arms and face muscles — a good round of laughter is a great aerobic workout!

其次，当你笑的时候，你的胃、腿、手臂和面部肌肉都在运动- 一阵开心的大笑是一次最好的有氧锻炼！

chenggzh0510.blog.163.com