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Did you know?

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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Astigmatism is the most common vision problem. It may accompany nearsightedness or farsightedness. It is usually caused by an irregularly shaped cornea, but sometimes it is the result of an irregularly shaped lens. Either type can be corrected by eyeglasses, contact lenses, or refractive surgery.

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Certain topical medications such as clotrimazole and betamethasone are not approved for use in children younger than 12 years of age. They must be used very cautiously, as directed by a doctor, to treat any child. Children have a much greater response to topical steroid medications.

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In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.

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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.

Although Neandertal brain sizes fall well within the modern human range, their EQ is lower than mode Although Neandertal brain sizes fall well within the modern human range, their EQ is lower than mode
Community colleges have opened higher education to millions of students who would not otherwise have ... Community colleges have opened higher education to millions of students who would not otherwise have ...
Birth of Modern Astronomy Birth of Modern Astronomy
The ancestral and modern-day tomato. (b) Phenotypic effect of the fw2.2 transgene in the tomato The ancestral and modern-day tomato. (b) Phenotypic effect of the fw2.2 transgene in the tomato
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Modern Armadillo versus a Fossil Glyptodon Modern Armadillo versus a Fossil Glyptodon
Video: Dissociative Disorders (Part 3)

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