Research indicates that when individuals unknowingly smell fear sweat from others, their own amygdala, the fear center of the brain, becomes activated. This finding suggests that even without conscious awareness, people can pick up on the fear signals in the sweat of others, leading to feelings of uneasiness, discomfort, and heightened cortisol levels. This phenomenon explains why individuals may feel anxious, unsafe, or hesitant to share personal experiences or challenges with someone emitting fear sweat.

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