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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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Patients who have undergone chemotherapy for the treatment of cancer often complain of a lack of mental focus; memory loss; and a general diminution in abilities such as multitasking, attention span, and general mental agility.
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When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.
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The average human gut is home to perhaps 500 to 1,000 different species of bacteria.
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Increased intake of vitamin D has been shown to reduce fractures up to 25% in older people.