Why is it easy to sweat when sleeping in summer?

When the temperature is higher than the body temperature in summer, the human body will absorb the surrounding heat to raise the body temperature, but the human body must maintain the normal temperature and start sweating, because after sweating, the water evaporates and absorbs the heat on the body surface to lower the body temperature faster, thus keeping the body temperature at 37 degrees. People suffer from heatstroke because the temperature is too high, the human body absorbs heat too quickly, and the temperature is too slow, which leads to the decrease of enzyme activity, abnormal biochemical reaction, excessive metabolic waste or insufficient support, and dizziness and other symptoms.