Examlex
Throughout the entire body, the human nervous system contains an estimated 1 trillion neurons.
Tobacco Use
The act of consuming tobacco products, such as cigarettes, cigars, or chewing tobacco, often leading to addiction and various health risks.
Developing Countries
Nations with a lower level of material well-being and economic development, often characterized by poverty and lower industrialization.
Stimulant
A type of drug that increases activity of the central nervous system, resulting in increased alertness, attention, and energy.
Opioids
Substances, including morphine and heroin, that produce euphoria followed by a tranquil state; in severe intoxication, can lead to unconsciousness, coma, and seizures; can cause withdrawal symptoms of emotional distress, severe nausea, sweating, diarrhea, and fever.
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