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All About Narcotics!
Humans have used narcotic drugs for thousands of years, beginning in 4,000 B.C. Narcotics are substances used to dull the senses, suppress coughing, treat diarrhea, relieve pain and as anesthetics....
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Neurotransmitters—Acetylcholine
A Neurotransmitter serves the autonomic nervous system (ANS) on both its subdivisions known as sympathetic and parasympathetic divisions. These divisions are responsible of controlling a wide variety...
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