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Did you know?

The average human gut is home to perhaps 500 to 1,000 different species of bacteria.

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People about to have surgery must tell their health care providers about all supplements they take.

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There are 60,000 miles of blood vessels in every adult human.

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For about 100 years, scientists thought that peptic ulcers were caused by stress, spicy food, and alcohol. Later, researchers added stomach acid to the list of causes and began treating ulcers with antacids. Now it is known that peptic ulcers are predominantly caused by Helicobacter pylori, a spiral-shaped bacterium that normally exist in the stomach.

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Not getting enough sleep can greatly weaken the immune system. Lack of sleep makes you more likely to catch a cold, or more difficult to fight off an infection.

The evolution of orthologs: homologous genes from different species. The evolution of orthologs: homologous genes from different species.
Comparison of the radius of fruits produced by native and introduced species of Sapindaceae Comparison of the radius of fruits produced by native and introduced species of Sapindaceae
Several species of squirrels have melanistic phases. In large parts of United States and Canada, the Several species of squirrels have melanistic phases. In large parts of United States and Canada, the
Human eye anatomy Human eye anatomy
The base of the human cranium is more flexed than the base of the chimpanzee cranium. The base of the human cranium is more flexed than the base of the chimpanzee cranium.
Human Development and Remittances Human Development and Remittances
Video: Tuberculosis Testing

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