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Did you know?

Acetaminophen (Tylenol) in overdose can seriously damage the liver. It should never be taken by people who use alcohol heavily; it can result in severe liver damage and even a condition requiring a liver transplant.

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Sperm cells are so tiny that 400 to 500 million (400,000,000–500,000,000) of them fit onto 1 tsp.

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It is believed that humans initially contracted crabs from gorillas about 3 million years ago from either sleeping in gorilla nests or eating the apes.

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The first oral chemotherapy drug for colon cancer was approved by FDA in 2001.

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Hippocrates noted that blood separates into four differently colored liquids when removed from the body and examined: a pure red liquid mixed with white liquid material with a yellow-colored froth at the top and a black substance that settles underneath; he named these the four humors (for blood, phlegm, yellow bile, and black bile).

Physical findings of the skin indicative of substance abuse Physical findings of the skin indicative of substance abuse
The neural pathway responsible for the production and learning of song in the male canary. The neural pathway responsible for the production and learning of song in the male canary.
Physical features of Sjögren's syndrome. Source: Ways Sjogren's Syndrome May Affect the ... Physical features of Sjögren's syndrome. Source: Ways Sjogren's Syndrome May Affect the ...
Geographies of Language Geographies of Language
How Does Earth Work? Physical Geology and the Process of Science, 2nd Edition How Does Earth Work? Physical Geology and the Process of Science, 2nd Edition
Summary of the digestive activities Summary of the digestive activities
Video: Appendicitis Animation

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