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Excessive sweat – why does hyperhidrosis occur
The body needs sweat in order to cool down when the temperatures become too high. In nature, we see many creatures using different methods to keep a constant body temperature – sweating is our way of doing it. Unfortunately, some people experience excessive sweat , a condition known as hyperhidrosis , in which the sweat levels are higher than necessary. The condition occurs because of the overactive sympathetic nervous system.
Hyperhidrosis causes
The central command center for sweat related processes is the hypothalamus. The brain sends information to the sweat nerves which then pass it along to the sweat glands. When shis system gets overactive, the sweat glends produce larger amounts of sweat, resulting in the condition known as hyperhidrosis. Different stimuli can contribute to this process. The most common include nervousness, outside pressure, anxiety, stress.
Social interactions may also trigger excessive sweat, because they are the environtments when all of the above mentioned factors become active. When a person suffering from hyperhidrosis is engaged in social interactions the strength of the outside stimuli increases, making that person more susceptible to sweat extensively.
Hyperhidrosis manifestations
The most common manifestations of excessive sweating affect the hands, armpits, face and feet. You can learn more about each of them by following the links below: 
