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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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Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.
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The first successful kidney transplant was performed in 1954 and occurred in Boston. A kidney from an identical twin was transplanted into his dying brother's body and was not rejected because it did not appear foreign to his body.
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The first oncogene was discovered in 1970 and was termed SRC (pronounced "SARK").
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Not getting enough sleep can greatly weaken the immune system. Lack of sleep makes you more likely to catch a cold, or more difficult to fight off an infection.