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Did you know?

The immune system needs 9.5 hours of sleep in total darkness to recharge completely.

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Although puberty usually occurs in the early teenage years, the world's youngest parents were two Chinese children who had their first baby when they were 8 and 9 years of age.

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There are over 65,000 known species of protozoa. About 10,000 species are parasitic.

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Excessive alcohol use costs the country approximately $235 billion every year.

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A recent study has found that following a diet rich in berries may slow down the aging process of the brain. This diet apparently helps to keep dopamine levels much higher than are seen in normal individuals who do not eat berries as a regular part of their diet as they enter their later years.

Components of the Human Body Components of the Human Body
Human Memorabilia in Space Human Memorabilia in Space
Skeletons of a human and an elephant Skeletons of a human and an elephant
A highly simplified view of the overall plan of the human body. A highly simplified view of the overall plan of the human body.
Examples of Human Disorders Caused by Single-Gene Mutations Examples of Human Disorders Caused by Single-Gene Mutations
Producing human insulin in E. coli Producing human insulin in E. coli
Video: Krebs cycle : Formation of acetyl coenzyme A and Electron transport chain

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