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The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.
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The average office desk has 400 times more bacteria on it than a toilet.
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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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Increased intake of vitamin D has been shown to reduce fractures up to 25% in older people.
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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.