Now, if you were actually in this study, you'd probably be a little stressed out.Your heart might be pounding, you might be breathing faster, maybe breaking out into a sweat.

　　试想一下，如果你真的从事这项研究，你可能会感受到一些压力。你的心脏可能砰砰乱跳，而你的呼吸也有可能变得急促，设置开始冒汗。