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Did you know?
The human body produces and destroys 15 million blood cells every second.
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Barbituric acid, the base material of barbiturates, was first synthesized in 1863 by Adolph von Bayer. His company later went on to synthesize aspirin for the first time, and Bayer aspirin is still a popular brand today.
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This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.
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The word drug comes from the Dutch word droog (meaning "dry"). For centuries, most drugs came from dried plants, hence the name.
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Eating carrots will improve your eyesight. Carrots are high in vitamin A (retinol), which is essential for good vision. It can also be found in milk, cheese, egg yolks, and liver.
![When young infants hold objects for a long period of time they eventually become habituated to them.](https://biology-forums.com/gallery/47/medium_637842_18_01_17_6_02_54_245021528.png)
![Jostle the thigh, tossing from side to side, hand to hand. Causes loose, free movement in the hip ...](https://biology-forums.com/gallery/33/medium_380798_23_08_17_1_04_33_33075731.jpeg)