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More than 2,500 barbiturates have been synthesized. At the height of their popularity, about 50 were marketed for human use.

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Children of people with alcoholism are more inclined to drink alcohol or use hard drugs. In fact, they are 400 times more likely to use hard drugs than those who do not have a family history of alcohol addiction.

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In 1844, Charles Goodyear obtained the first patent for a rubber condom.

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Earwax has antimicrobial properties that reduce the viability of bacteria and fungus in the human ear.

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People often find it difficult to accept the idea that bacteria can be beneficial and improve health. Lactic acid bacteria are good, and when eaten, these bacteria improve health and increase longevity. These bacteria included in foods such as yogurt.

The Border Collie is considered to be one of the most intelligent breeds. The Border Collie is considered to be one of the most intelligent breeds.
organs affected by cystic fibrosis organs affected by cystic fibrosis
The anterior pituitary gland and its target organs. The anterior pituitary gland and its target organs.
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Sagittal section of the female pelvis, showing organs of the reproductive system. Sagittal section of the female pelvis, showing organs of the reproductive system.
Video: Mechanisms of capillary exchange

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