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Increased intake of vitamin D has been shown to reduce fractures up to 25% in older people.
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Long-term mental and physical effects from substance abuse include: paranoia, psychosis, immune deficiencies, and organ damage.
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The average human gut is home to perhaps 500 to 1,000 different species of bacteria.
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The longest a person has survived after a heart transplant is 24 years.
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Amoebae are the simplest type of protozoans, and are characterized by a feeding and dividing trophozoite stage that moves by temporary extensions called pseudopodia or false feet.