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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.
A recent study has found that following a diet rich in berries may slow down the aging process of the brain. This diet apparently helps to keep dopamine levels much higher than are seen in normal individuals who do not eat berries as a regular part of their diet as they enter their later years.
Cytomegalovirus affects nearly the same amount of newborns every year as Down syndrome.
People with high total cholesterol have about two times the risk for heart disease as people with ideal levels.
People with alcoholism are at a much greater risk of malnutrition than are other people and usually exhibit low levels of most vitamins (especially folic acid). This is because alcohol often takes the place of 50% of their daily intake of calories, with little nutritional value contained in it.