TellMeWhy

A wonderful and marvelous collection of answers to intriguing questions everyone ask about the world covering almost every subject, from science and history to art, language, mathematics, technology, and homeschooling

when was blood-letting common
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When Was Blood-letting Common?

Blood-letting was a common form of medical treatment before the time of Hippocrates (400 B. C.), the Greek “father of medicine” and was

what happens when we blush
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What Happens When We Blush?

What Happens When We Blush? When we blush we go red in the face, particularly in the cheeks and neck. This is because a sudden emotion, such

where are the sweat glands
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Where Are the Sweat Glands?

Sweat glands, of which everybody has approximately two million, are distributed all over the body on the skin surface. They are not, however