3) Exercise. It’s not about going to the gym and working out for two hours. That’s not a quick solution. It’s about using a couple of minutes to do some simple exercising, like stretching your muscles or running a little. Exercising will help release tension in the muscles and will boost your level of endorphins, which is the body’s natural drug for improving your mood, including your confidence.
锻炼。这里的锻炼并不是指让你去健身房，而是指你可以停下来做简单的锻炼几分钟。

来源:可可英语 http://www.kekenet.com/read/201002/97327.shtml