A Moment of Science
As this watery sweat rinses your skin, it cools the body by evaporation--and even performs a community service by rinsing away potentially stinky bacteria!
Dehydration is big problem in some sports because you don't feel like you're losing water.
Why do hands and feet sweat so much? How do hormones and the nervous system control the body's cooling system?
If you have ever been outside on a hot day or gone for a long run you know that sweat is salty.
Sweat is good. When you’re too hot, the sweat evaporating on your skin can cool your body off. Sweat also provides a good waste disposal system for your body, getting rid of toxins and other waste products as it cools you down. However, for top athletes who sweat a lot, too much of a good thing can spell trouble. Learn more on this Moment of Science.
If a memory causes physical distress, does that necessarily mean that the event you’re remembering actually happened? Learn more on this Moment of Science.
Ever wonder how long your body could function without water? Find out on this Moment of Science.
When sweat evaporates, it cools the skin, and panting releases heat through the mouth. So how do cats keep from overheating if they don't seem to sweat or pant?
When you have a cold or flu, the doctor (or Dr. Mom) may tell you to drink lots of fluids. But did they ever explain why you need to guzzle all that water and juice?The extra fluid helps prevent dehydration, which can make you feel even worse, and make it harder to get well.
What turns the mosquito on are goodies like carbon dioxide, heat, moisture, and lactic acid, which is secreted in sweat. These four elements make our bodies prime targets for the mosquito’s bite.
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