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There are 60,000 miles of blood vessels in every adult human.
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The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.
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Illness; diuretics; laxative abuse; hot weather; exercise; sweating; caffeine; alcoholic beverages; starvation diets; inadequate carbohydrate consumption; and diets high in protein, salt, or fiber can cause people to become dehydrated.
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Alzheimer's disease affects only about 10% of people older than 65 years of age. Most forms of decreased mental function and dementia are caused by disuse (letting the mind get lazy).
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It is believed that humans initially contracted crabs from gorillas about 3 million years ago from either sleeping in gorilla nests or eating the apes.
![Jane Goodall pioneered the modern approach to studying primates in the wild, involving close-up obse](https://biology-forums.com/gallery/47/medium_269691_26_01_15_5_55_22_20430326.jpeg)
![In 1948 the strongly Republican Chicago Daily Tribune printed its postelection headlines before all ...](https://biology-forums.com/gallery/47/medium_632960_01_12_16_11_27_10_24181281.jpeg)