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On average, someone in the United States has a stroke about every 40 seconds. This is about 795,000 people per year.
There are major differences in the metabolism of morphine and the illegal drug heroin. Morphine mostly produces its CNS effects through m-receptors, and at k- and d-receptors. Heroin has a slight affinity for opiate receptors. Most of its actions are due to metabolism to active metabolites (6-acetylmorphine, morphine, and morphine-6-glucuronide).
The average human gut is home to perhaps 500 to 1,000 different species of bacteria.
People about to have surgery must tell their health care providers about all supplements they take.
The highest suicide rate in the United States is among people ages 65 years and older. Almost 15% of people in this age group commit suicide every year.