When you play somthing how do you get sweaty?

When you play a sport or engage in physical activity, your body generates heat as your muscles work harder. To regulate your body temperature, your sweat glands produce sweat, which cools you down as it evaporates from your skin. The intensity of the activity, along with factors like temperature and humidity, determines how much you sweat. The more vigorous the exercise, the sweatier you become.