How Does Cut Skin and Scrapes Heal?
How Does Cut Skin and Scrapes Heal? When you cut yourself, blood flows out of the wound from tiny blood vessels in your skin. Lucky for you, the bleeding soon stops....
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What Do You Mean by the Term Butterflies in the Stomach?
What Do You Mean by the Term Butterflies in the Stomach? How did butterflies get in your stomach? Well, those really aren’t butterflies in there....
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Why Do Mosquito Bites Itch?
Why Do Mosquito Bites Itch? The itchy welt that forms after a mosquito bite is caused by saliva that the mosquito injects into the skin. When a mosquito bites, it pokes...
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What Are Black and Blue Marks?
What Are Black and Blue Marks? Black-and-blue marks indicate bleeding under the skin. When we receive a sharp blow, tiny blood vessels break inside the skin. Blood from...
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Why Do We Get Sunburned?
Why Do We Get Sunburned? Sunburn is the result of over-exposure to sunlight, which causes heat and light damage to the skin. Ultraviolet rays from the sun penetrate the...
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