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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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The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.

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There used to be a metric calendar, as well as metric clocks. The metric calendar, or "French Republican Calendar" divided the year into 12 months, but each month was divided into three 10-day weeks. Each day had 10 decimal hours. Each hour had 100 decimal minutes. Due to lack of popularity, the metric clocks and calendars were ended in 1795, three years after they had been first marketed.

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The most destructive flu epidemic of all times in recorded history occurred in 1918, with approximately 20 million deaths worldwide.

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Interferon was scarce and expensive until 1980, when the interferon gene was inserted into bacteria using recombinant DNA technology, allowing for mass cultivation and purification from bacterial cultures.

Platystictidae is a family of damselflies, commonly known as shadowdamsels. Platystictidae is a family of damselflies, commonly known as shadowdamsels.
Protoneuridae is a family of damselflies. Most species are commonly known as threadtails, while othe Protoneuridae is a family of damselflies. Most species are commonly known as threadtails, while othe
The toxin muscarine comes from the mushroom Amanita muscaria, more commonly known as fly agaric or m The toxin muscarine comes from the mushroom Amanita muscaria, more commonly known as fly agaric or m
Injectable Drugs Commonly Stocked in the Medical Office Injectable Drugs Commonly Stocked in the Medical Office
Injectable Drugs Commonly Stocked in the Medical Office Injectable Drugs Commonly Stocked in the Medical Office
Some of the most commonly used radiometric dating methods Some of the most commonly used radiometric dating methods
Video: Diversity of Living Creatures - Charles Darwin & the Beagle's Voyage

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