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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 first-known contraceptive was crocodile dung, used in Egypt in 2000 BC. Condoms were also reportedly used, made of animal bladders or intestines.

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The top five reasons that children stay home from school are as follows: colds, stomach flu (gastroenteritis), ear infection (otitis media), pink eye (conjunctivitis), and sore throat.

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Today, nearly 8 out of 10 pregnant women living with HIV (about 1.1 million), receive antiretrovirals.

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Oliver Wendell Holmes is credited with introducing the words "anesthesia" and "anesthetic" into the English language in 1846.

Steroid hormone interacting with an intracellular receptor. Steroid hormone interacting with an intracellular receptor.
Action of Steroid Hormones Action of Steroid Hormones
The polypeptide II helix The polypeptide II helix
Polypeptide Drawn Polypeptide Drawn
A gene encodes an RNA, which can encode a polypeptide. A gene encodes an RNA, which can encode a polypeptide.
Structure of polypeptide chains Structure of polypeptide chains
Video: Properties of macromolecules (Explained with No Audio)

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