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Did you know?

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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The tallest man ever known was Robert Wadlow, an American, who reached the height of 8 feet 11 inches. He died at age 26 years from an infection caused by the immense weight of his body (491 pounds) and the stress on his leg bones and muscles.

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The average older adult in the United States takes five prescription drugs per day. Half of these drugs contain a sedative. Alcohol should therefore be avoided by most senior citizens because of the dangerous interactions between alcohol and sedatives.

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When blood is deoxygenated and flowing back to the heart through the veins, it is dark reddish-blue in color. Blood in the arteries that is oxygenated and flowing out to the body is bright red. Whereas arterial blood comes out in spurts, venous blood flows.

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In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.

Anatomical and common names for the pelvic girdle and lower extremity. Anatomical and common names for the pelvic girdle and lower extremity.
Otitis media. This illustration shows an inflamed tympanic cavity, which is the most common source o Otitis media. This illustration shows an inflamed tympanic cavity, which is the most common source o
Early in the twentieth century, when malnutrition was common, companies such as this one advertised Early in the twentieth century, when malnutrition was common, companies such as this one advertised
Common Blood Chemistry Tests Common Blood Chemistry Tests
Hysterectomies have become so common that by age 60, one of three U.S. women has had her uterus ... Hysterectomies have become so common that by age 60, one of three U.S. women has had her uterus ...
Some of the common structural abnormalities seen in chromosomes. (a) In a deletion, part of a chromo Some of the common structural abnormalities seen in chromosomes. (a) In a deletion, part of a chromo
Video: Exercise and cardiac output & Definition of stroke volume

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