时差N小时 为什么紧张会容易口干舌燥？(上)（在线收听）

Here’s the scene. The audience is waiting with bated breath, you’re just about to give a speech, and suddenly you notice your mouth is dry as sawdust. You haven’t said a word yet! Why did you get cottonmouth before you even began?

以下面场景为例。观众在屏息等待，而你正准备发表演讲，突然你发现嘴巴干得像木屑一样。你一句话都还没说！为什么还没开口就口干舌燥？

Fight or Flight

战或逃反应

The dry mouth that, for many people, goes along with public speaking or performance is connected to the “fight or flight” response. When you’re nervous or afraid, the nervous system slows down all the body processes that aren’t necessary for your immediate survival, and amps up the ones that just might save your life-that is, if you’re about to be attacked by a predator like a tiger or a bear.

对许多人来说，进行公众演讲或表演时产生的口干舌燥与“战或逃”反应有关。当你感到紧张或害怕时，神经系统会自动减慢所有不影响你当下生存问题的身体活动，加速那些可能拯救你生命的活动——也就是说，如果遇到即将被老虎或熊等捕食者攻击的这种情况。

As the “fight or flight” response kicks in, your heart rate goes up and more blood goes to your heart and major muscle groups, so you can make a quick getaway, or grab a big stick.

当“战或逃”反应激活时，你的心率会上升，更多的血液会流向心脏和主要的肌肉群，这样你就可以快速逃离，或者抓起一根棍子自卫。