Your body is like a smart air conditioner. When it’s hot outside, your skin sends tiny fans called sweat glands to work overtime, making you sweat, which cools you down. If that doesn’t help, your blood vessels near the surface of your skin open up so more heat can escape from your body. Sometimes your heart even works harder to pump blood faster, just like a fire truck rushing through a busy street to put out a big flame.
Examples
- You're at the beach on a hot day, and you start sweating, your body’s way of cooling you down like an air conditioner.
- Your legs feel like they’re burning after running in the sun, that’s your blood vessels working hard to release heat.
- You're outside for too long, and suddenly your head feels dizzy, that's your body trying its best but starting to overheat.
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See also
- Why Do We Shiver When We’re Cold?
- How Does the Human Body Age Over Time?
- How Does the Human Body Repair Itself After Injury?
- How Does the Human Body Heal After an Injury?
- Why Do People Blush When Nervous?
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