Why do I sweat more than other people?

The number of active sweat glands and how readily they fire are largely genetic, so your baseline may simply run higher than a friend's.

Fitter people often sweat earlier and more, because a trained body starts cooling before heat builds up.

Larger bodies produce more heat and need more sweat to stay balanced, which shifts output upward.

Even mood and caffeine sensitivity differ between people, adding another layer to why two people in one room respond so differently.

On average men tend to sweat more heavily than women, though there is wide overlap and plenty of individual exceptions.

How readily your particular nervous system reacts to stress also shapes output, since emotional sweating varies as much as thermal sweating.

All of these factors combine, so the person next to you may differ from you on several of them at once.

It is tempting to read heavier sweating as a flaw, but much of the gap between people is fixed biology rather than habit.

Comparison drives the worry more than any objective standard does.

You also experience your own sweat directly while only rarely seeing how much others produce, which biases the comparison toward feeling unusual.

The useful question is not how you compare to others but whether your sweating matches the heat and effort of the moment.

If your sweating clearly exceeds the situation, happens without heat, or recently changed, a clinician can determine whether it is more than a trait.