How Much do We Sweat Per Day?

A hard working adult can sweat up to around 4 gallons (15 liters) a day. This varies depending on the temperature and humidity of the environment, but even in normal circumstances, the average person sweats up to 1.5 gallons (6 liters) per day. Half a pint (about 240 mL) of that usually comes from the feet!

Other facts about sweating:

  • Women have more sweat glands than men, but men typically have more active sweat glands.

  • Contrary to popular belief, pigs do not sweat. That's why they coat themselves in mud to stay cool. Dogs and cats do sweat — through the pads on their feet. A rabbit's sweat glands are around its lips.

  • Those with the condition hyperhidrosis sweat up to five times as much as those with normal sweat glands. People with anhydrosis, however, don't sweat enough to cool their bodies. This condition can be fatal if the body gets overheated.

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Now I know how pets sweat!

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