Examlex
______ are one of the longest-running serial programs in the history of television.
Caffeine
A stimulant compound found in coffee, tea, and various beverages and products, known for its effects on increasing alertness and decreasing fatigue.
Stimulant
A substance that raises levels of physiological or nervous activity in the body.
Narcotic
A class of drugs that produce analgesic (pain-relieving) effects, often leading to drowsiness, and can cause dependence.
Opiates
Natural or synthetic drugs that produce effects similar to those of opium, often used for pain relief but with a high potential for addiction.
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