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Did you know?

Nearly 31 million adults in America have a total cholesterol level that is more than 240 mg per dL.

Did you know?

Only one in 10 cancer deaths is caused by the primary tumor. The vast majority of cancer mortality is caused by cells breaking away from the main tumor and metastasizing to other parts of the body, such as the brain, bones, or liver.

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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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Essential fatty acids have been shown to be effective against ulcers, asthma, dental cavities, and skin disorders such as acne.

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The horizontal fraction bar was introduced by the Arabs.

Muscles of the Body, Anterior View Muscles of the Body, Anterior View
Brain, spinal cord, and spinal nerves with an expanded view of a spinal nerve. Brain, spinal cord, and spinal nerves with an expanded view of a spinal nerve.
The cardiovascular system. A schematic view of the closed circulation of blood. The heart is section The cardiovascular system. A schematic view of the closed circulation of blood. The heart is section
Sutural bones superior view Sutural bones superior view
Video: Phases of the ovarian cycle

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