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There are more sensory neurons in the tongue than in any other part of the body.

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About 100 new prescription or over-the-counter drugs come into the U.S. market every year.

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Elderly adults are at greatest risk of stroke and myocardial infarction and have the most to gain from prophylaxis. Patients ages 60 to 80 years with blood pressures above 160/90 mm Hg should benefit from antihypertensive treatment.

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To prove that stomach ulcers were caused by bacteria and not by stress, a researcher consumed an entire laboratory beaker full of bacterial culture. After this, he did indeed develop stomach ulcers, and won the Nobel Prize for his discovery.

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There can actually be a 25-hour time difference between certain locations in the world. The International Date Line passes between the islands of Samoa and American Samoa. It is not a straight line, but "zig-zags" around various island chains. Therefore, Samoa and nearby islands have one date, while American Samoa and nearby islands are one day behind. Daylight saving time is used in some islands, but not in others—further shifting the hours out of sync with natural time.

Clades and descent from common ancestor Clades and descent from common ancestor
Common sites of amputation. (A) Upper extremities. (B) Lower extremities. The surgeon determines th Common sites of amputation. (A) Upper extremities. (B) Lower extremities. The surgeon determines th
Functional divisions of the peripheral nervous system Functional divisions of the peripheral nervous system
Common Functional Groups Found in Biomolecules Common Functional Groups Found in Biomolecules
Systemic Circuit Systemic Circuit
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