What is the origin of the idiom "jump out of one's skin" and when to use it?

The idiom "jump out of one's skin" likely emerged from the natural physiological response of the human body to sudden surprises or shocks. The phrase "jump out of one's skin" is used in various contexts to describe moments of extreme surprise, shock, or fright. It is commonly employed in storytelling, informal conversations, and descriptive writing to vividly depict the intensity of a person's reaction to a startling event.