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Did you know?

Normal urine is sterile. It contains fluids, salts, and waste products. It is free of bacteria, viruses, and fungi.

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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.

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Approximately one in three babies in the United States is now delivered by cesarean section. The number of cesarean sections in the United States has risen 46% since 1996.

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Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.

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Of the estimated 2 million heroin users in the United States, 600,000–800,000 are considered hardcore addicts. Heroin addiction is considered to be one of the hardest addictions to recover from.

Geoffroy's tamarin has been considered a subspecies of the similar cottontop tamarin, shown abo Geoffroy's tamarin has been considered a subspecies of the similar cottontop tamarin, shown abo
(Left panel) The transition level (TL) for moving out of the parental home for 240 young men and ... (Left panel) The transition level (TL) for moving out of the parental home for 240 young men and ...
A weather map depicting the sea-level pressure distribution for March 4, 1994. A weather map depicting the sea-level pressure distribution for March 4, 1994.
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The political path toward success may seem impenetrable The political path toward success may seem impenetrable
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Video: Structures that affect circulation - kidneys, blood volume and venous tone

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