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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).
Between 1999 and 2012, American adults with high total cholesterol decreased from 18.3% to 12.9%
Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.
Anti-aging claims should not ever be believed. There is no supplement, medication, or any other substance that has been proven to slow or stop the aging process.
In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.