Question

Why do we shake when nervous

Answer 1

Adrenaline works directly on receptor cells in muscles to speed up the contraction rate of the fibres, ready for fighting or fleeing. High levels of adrenaline can therefore lead to muscles twitching uncontrollably, making us shake.

Answer 2

Your body prepares to deal with the stressor, interpreting the anxiousness as a signal that you'll need to stand your ground or escape from danger. Your muscles become primed to act, leading to a trembling sensation, twitching, or shaking.

Step-by-step explanation: