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Did you know?
The human body produces and destroys 15 million blood cells every second.
Did you know?
Increased intake of vitamin D has been shown to reduce fractures up to 25% in older people.
Did you know?
Medication errors are more common among seriously ill patients than with those with minor conditions.
Did you know?
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.
Did you know?
The familiar sounds of your heart are made by the heart's valves as they open and close.