Sweating is increased by nervousness, nausea, hot weather, and physical activity. Some people suffer from abnormally increased perspiration, called hyperhidrosis. Excessive sweating can also be a sign of a shock or other medical emergency and is then called diaphoresis.
Sweating during spanking
It is normal for both the spanker and the spankee to heat up and sweat a lot during a spanking. Especially the spankee will often be surprisingly wet with sweat all over his or her body after only a few minutes of being spanked.
As in sports, liquid lost through sweating should be replaced by drinking water. The removal of clothing is also often a blessing when strong sweating occurs.