MedlinePlus states that the average person produces approximately 1 quart of sweat per day. There are an immense number of eccrine sweat glands in the body and the number of eccrine sweat glands is in excess of 2.5 million. WebMD explains that the factors that determine how much a person sweats on a given day include the spiciness of the food the person consumes, their nervousness, the amount of exercise they get, sickness and even some medical conditions. The Mayo Clinic notes that one such medical condition is hyperhidrosis, which is brought on by overactive sweat glands.

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