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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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Everyone has one nostril that is larger than the other.
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The people with the highest levels of LDL are Mexican American males and non-Hispanic black females.
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Asthma cases in Americans are about 75% higher today than they were in 1980.
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The first oncogene was discovered in 1970 and was termed SRC (pronounced "SARK").