WHY DO WE SWEAT?

Sweat is produced by dedicated sweat glands, and is a mechanism used primarily by the body to reduce its internal temperature. There are two types of sweat gland in the human body, the eccrine gland and the apocrine gland. The former regulates body temperature, and is the primary source of excreted sweat, with the latter only secreting under emotional stresses, rather than those involved with body dehydration.

Eccrine sweat glands are controlled by the sympathetic nervous system and, when the internal temperature of the body rises, secrete a salty, water-based substance to the skin’s surface. This liquid then cools the skin and the body through evaporation, storing and then transferring excess heat into the atmosphere.

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Both the eccrine and apocrine sweat glands only appear in mammals and, if active over the majority of the animal’s body, act as the primary thermoregulatory device. Certain mammals only have eccrine glands in specific areas – such as paws and lips – warranting the need to pant to control their temperature.

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8 thoughts

  1. I thought emotional stress will produce tears rather than sweat. LOL. Good to know we also have apocrine gland. Does it sweat while people are crying or afterwards? Nice posts. Enjoy it.

    Liked by 1 person

    1. The most common reason for lack of sweating is dehydration. Some people aren’t able to sweat typically because their sweat glands are no longer functioning properly.

      Research shows that fit individuals, especially those who train for endurance sports like running and cycling, sweat sooner and more profusely than people who rarely get physical.

      Liked by 1 person

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