And building strength, whether physical or mental, is about improving your ability to recover from greater states of stress.

增强力量，无论是身体上还是精神上，都是要提高你从更大的压力状态中恢复的能力。

In states of stress, like an infection, the body releases epinephrine, which in turn stimulates the release of glucagon.

在压力状态下，比如发生感染时，身体会产生肾上腺素，从而刺激胰高血糖素的释放。

If you see the tail drooping, it may be a sign that the animal is in a state of stress and anxiety.

如果您看到尾巴下垂，则可能表明该动物处于压力和焦虑状态。