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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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The longest a person has survived after a heart transplant is 24 years.

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Lower drug doses for elderly patients should be used first, with titrations of the dose as tolerated to prevent unwanted drug-related pharmacodynamic effects.

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Long-term mental and physical effects from substance abuse include: paranoia, psychosis, immune deficiencies, and organ damage.

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Giardia is one of the most common intestinal parasites worldwide, and infects up to 20% of the world population, mostly in poorer countries with inadequate sanitation. Infections are most common in children, though chronic Giardia is more common in adults.

Blue whale skeleton at the Canadian Museum of Nature in Ottawa, Ontario. Blue whale skeleton at the Canadian Museum of Nature in Ottawa, Ontario.
Internal structures of main sequence stars, convection zones with arrowed cycles and radiative zones Internal structures of main sequence stars, convection zones with arrowed cycles and radiative zones
In 2009, historian Woody Holton described how Abigail Adams shrewdly invested in the Continental Con In 2009, historian Woody Holton described how Abigail Adams shrewdly invested in the Continental Con
Ugonachomma display figure, Igbo, Nigeria. Ugonachomma display figure, Igbo, Nigeria.
The yellow, blue, and green sections of the Emergency Response Guidebook (ERG). The yellow section ... The yellow, blue, and green sections of the Emergency Response Guidebook (ERG). The yellow section ...
A solution is made by adding 0.100 mole of ethyl ether to 0.401 mole of ethyl alcohol. If the ... A solution is made by adding 0.100 mole of ethyl ether to 0.401 mole of ethyl alcohol. If the ...
Video: Hierarchical Sequencing Method - Sequence Tagged Sites

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