Break out in a cold sweat
Meaning
To suddenly experience a physical reaction of clammy perspiration, typically due to intense fear, anxiety, or nervousness.
Origin
Humans have long recognized the unsettling physiological response to extreme fear or shock: a sudden, chilling dampness coating the skin. Unlike the warm sweat of exertion, this 'cold sweat' was a primal signal, a stark manifestation of the body's internal battle against overwhelming stress. It’s the sympathetic nervous system kicking into overdrive, constricting blood vessels, and shunting blood away from the skin, leaving it pale and cool, yet still secreting moisture. The phrase itself simply describes this universally observed and deeply visceral reaction, capturing the unsettling moment when profound emotional turmoil physically betrays the body, leaving one literally drenched in the icy grip of panic or terror.
Examples
- Before her big presentation, she started to break out in a cold sweat, her hands trembling slightly.
- The terrifying sound of the branch snapping in the dark woods made him break out in a cold sweat.