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The average human gut is home to perhaps 500 to 1,000 different species of bacteria.
The most common treatment options for addiction include psychotherapy, support groups, and individual counseling.
People about to have surgery must tell their health care providers about all supplements they take.
Urine turns bright yellow if larger than normal amounts of certain substances are consumed; one of these substances is asparagus.
Before a vaccine is licensed in the USA, the Food and Drug Administration (FDA) reviews it for safety and effectiveness. The CDC then reviews all studies again, as well as the American Academy of Pediatrics and the American Academy of Family Physicians. Every lot of vaccine is tested before administration to the public, and the FDA regularly inspects vaccine manufacturers' facilities.