Physical pain is a short term stressor, while Emotional Pain are long term.

A scrape in the knee can keep you occupied for a short period of time. But a broken heart can last a lifetime. But there are cases where physical stress can cause a massive long term stress like an amputee or stroke, they develop a sense of lost and an emotion of despair.

Main point here is as long as Emotions aren't involved the stress would just be short term. "Don't get to emotional in an exam next time."

pur-new-sol