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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.
IgA antibodies protect body surfaces exposed to outside foreign substances. IgG antibodies are found in all body fluids. IgM antibodies are the first type of antibody made in response to an infection. IgE antibody levels are often high in people with allergies. IgD antibodies are found in tissues lining the abdomen and chest.
In most cases, kidneys can recover from almost complete loss of function, such as in acute kidney (renal) failure.
This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.
Vaccines prevent between 2.5 and 4 million deaths every year.