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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).
Approximately 500,000 babies are born each year in the United States to teenage mothers.
Drying your hands with a paper towel will reduce the bacterial count on your hands by 45–60%.
A seasonal flu vaccine is the best way to reduce the chances you will get seasonal influenza and spread it to others.
Approximately 70% of expectant mothers report experiencing some symptoms of morning sickness during the first trimester of pregnancy.