Heat is the primary stimulus to the eccrine glands but other stimuli such as nervousness or eating spicy foods can cause sweating. Acclimation to heat in the environment is required in order for the body to function well. The time required depends upon temperature, humidity and duration of exposure each day. Full acclimation to hot environments can take 2 weeks to a month. It represents an acute and dangerous threat to the life of the person.
Immediate therapy is necessary.
The person must be cooled down by the use of an ice bath or evaporative cooling, saline may be infused intraveneously to force fluids and the person should be monitored by health professionals for several days. Hands and feet will also sweat excessively in emotional situations such as nervous agitation, hysteria, or fright. Heat exhaustion is caused by the loss of fluids and sodium chloride in excessive sweating due to exposure to heat. Symptoms include weakness, dizziness, nausea , headache, and collapse. Treatment should include shading the person and replacement of electrolytes by taking salt tablets, drinking fruit juices or sports drinks.