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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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In 1864, the first barbiturate (barbituric acid) was synthesized.

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According to the CDC, approximately 31.7% of the U.S. population has high low-density lipoprotein (LDL) or "bad cholesterol" levels.

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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.

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Every 10 seconds, a person in the United States goes to the emergency room complaining of head pain. About 1.2 million visits are for acute migraine attacks.

Mutations caused by air pollution. Mutations caused by air pollution.
New Yorkers flee from the dust caused by the collapse of the twin towers of the World Trade Center f New Yorkers flee from the dust caused by the collapse of the twin towers of the World Trade Center f
Significant hash can be caused by faults in one or more cylinders, whereas amplified hash is not ... Significant hash can be caused by faults in one or more cylinders, whereas amplified hash is not ...
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Video: Endocytosis - pinocytosis, receptor mediated and Transcytosis

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