hey there,

hope you ARE DOING WELL AND keeping fit.

so heres the answer to your query...

The Yerkes-Dodson law is a model of the relationship between stress and task performance.

It proposes that you reach your peak level of performance with an intermediate level of stress, or arousal. Too little or too much arousal results in poorer performance. Having no stress at all isn’t necessarily a good thing in terms of performance. A moderate level of stress goes a long way. It’s manageable, motivational, and performance enhancing. Your heart beats a bit faster. You feel a sense of clarity and alertness.

hope you have understood everything.