Your heart's pounding, your hands are sweating, you're a mess.

你的心在狂跳，你的手在出汗，你一团糟。

And if you understand the basic biology of sweating you'll understand why.

如果你了解出汗的基本生物学，你就会明白为什么。

Usually, it's like a week where you're in bed, you're sweating, you have a fever, everything's terrible, and you also might hear the expression " man flu" .

通常，你需要卧床一周，你会出汗、发烧，感觉糟透了，你也许听到过“男士感冒”一词。

If you're doing this right, you are going to be sweating, you're going to be shaking, and you're going to be surprised how deceptively difficult this is.

如果你做对了， 你会大汗淋漓，你会发抖，你会惊讶于这看似困难。