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Signs of depression include feeling sad most of the time for 2 weeks or longer; loss of interest in things normally enjoyed; lack of energy; sleep and appetite disturbances; weight changes; feelings of hopelessness, helplessness, or worthlessness; an inability to make decisions; and thoughts of death and suicide.
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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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By definition, when a medication is administered intravenously, its bioavailability is 100%.
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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.
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Blood in the urine can be a sign of a kidney stone, glomerulonephritis, or other kidney problems.