Why do some people sweat much more than others?
Quick Answer
Sweating varies because of genetics, fitness, body size, hormones, temperature, and the activity of sweat glands. Some people also have hyperhidrosis, a condition that causes excessive sweating.
The Full Story
Sweat is the body’s main cooling system, but people do not all produce the same amount. Larger bodies, higher metabolism, hot environments, exercise, anxiety, and hormones can all increase sweating. Genetics also affects how many active sweat glands a person has and how strongly they respond. Hyperhidrosis is a medical condition in which sweating is excessive beyond what the body needs for cooling, and it can affect the hands, feet, face, or underarms. Even in healthy people, sweat output can differ a lot from one person to another.
Key Facts
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