overdo

This term describes a crossing of a threshold where a positive action becomes negative due to excess. It carries a connotation of poor judgment or lack of restraint, often implying that the result is spoiled or harmful because the effort was too intense. It is frequently used in contexts of cooking, exercise, or social behavior where moderation is the ideal.

When used intransitively, the word specifically targets the physical or mental toll of exertion. It suggests a state of burnout or strain that occurs when one ignores the body's natural limits, shifting the focus from the quality of the output to the condition of the performer.