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Fact or Fiction: Sweating
by Staff
Sweating is yet another sometimes embarrassing -- but totally unavoidable -- fact of life. Find out how sweat is made and unusual facts about sweat with this quiz.

The average person has around 2 million sweat glands.

  • fact
  • fiction
  • almost fact: It's more like 2.6 million.

Sweat glands are distributed over the entire body -- except for the lips, nipples and external genital organs.

  • fact
  • fiction
  • almost fact: The soles of your feet don't have sweat glands, either.

The sweat glands are in the layer of skin called the epidermis.

  • fact
  • fiction
  • almost fact: They're actually a couple of layers down, in the dermis.

The part of the sweat gland called the tubule is what connects the gland to the pores.

  • fact
  • fiction
  • almost fact: It's called the tunnel.

Nerve cells from the sympathetic nervous system connect to sweat glands.

  • fact
  • fiction
  • almost fact: It's nerve cells from the digestive system that connect to sweat glands.

A sweat test, which measures the amount of salt in sweat, is used to diagnose Parkinson's disease.

  • fact
  • fiction
  • almost fact: It's a test for cystic fibrosis.

The maximum amount of sweat the average person can produce is about a pint an hour -- if you're not adapted to a hot climate.

  • fact
  • fiction
  • almost fact: The maximum hourly sweat is about a cup.

If you move to a hot climate, it will take you only about six weeks to start producing two to three liters of sweat per hour.

  • fact
  • fiction
  • almost fact: It will probably take you more like three months.

Sweat itself doesn't smell -- it starts to stink only when it mixes with bacteria on your skin.

  • fact
  • fiction
  • almost fact: To be more specific, sweat from the eccrine glands never smells -- it's sweat from the apocrine glands that mixes with bacteria and stinks.

Sweat cools you off more efficiently when the air is dry.

  • fact
  • fiction
  • almost fact: You'll actually cool off better on a humid day.