WEBVTT

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[MUSIC]
Joan Cartan-Hansen, Host: Your

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skin is more than just a
covering.

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Your skin helps regulate your
body temperature.

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When you're too hot, you sweat.

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The sweat helps release body
heat into the air and you cool

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down.

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A single square inch of skin
contains 300 sweat glands.

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If you're too cold, you get
goosebumps.

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That's when the hairs on your
body stand up, trapping warm air

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next to your skin.

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You shed dead skin cells all the
time.

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So, every 28 days, your skin
will renew itself.

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Your skin is also host to about
one thousand different types of

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bacteria.

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Most of these are good bacteria,
helping to maintain skin health.

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Oh, by the way.

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One study showed that you have
about 14 different types of

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fungi between your toes.

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And doctors say there is a
connection between your

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emotional state and your skin.

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If you're stressed, it can show
up as a rash or acne.

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So, drink water, eat right, get
enough sleep, and exercise.

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Your skin will thank you.

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For more information about skin,
check out the science trek

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website.

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You'll find it at science trek
dot org