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

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Pope Sylvester II tried to introduce Arabic numbers into Europe between the years 999 and 1003, but their use did not catch on for a few more centuries, and Roman numerals continued to be the primary number system.

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Alcohol acts as a diuretic. Eight ounces of water is needed to metabolize just 1 ounce of alcohol.

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

The sea urchin Diadema on a coral reef. Feeding by Diadema appears to play a key role in the interac The sea urchin Diadema on a coral reef. Feeding by Diadema appears to play a key role in the interac
Dominance relationships among individuals play an important role in many primate societies. Dominance relationships among individuals play an important role in many primate societies.
Play in Four Cultures Across cultures, play is the most common activity in early childhood. Source: Play in Four Cultures Across cultures, play is the most common activity in early childhood. Source:
The work of geneticists is valuable because genes play a role in virtually every aspect of ... The work of geneticists is valuable because genes play a role in virtually every aspect of ...
Young children’s play engages motor skills as well as cognitive skills (such as communicating, ... Young children’s play engages motor skills as well as cognitive skills (such as communicating, ...
Stereotypes, which play such a profound role in social life, are a basic area of sociological ... Stereotypes, which play such a profound role in social life, are a basic area of sociological ...
Video: Sex-Linked Traits! How are eye colors inherited in fruit flies?

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