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Brain waves of this type predominate when an individual is attentive and alert.
Alcohol
A colorless, volatile liquid that is the active ingredient in drinks such as beer, wine, and spirits, and is also used in sterilization and as a fuel source.
Caffeine
A natural stimulant found in coffee, tea, chocolate, and certain medications that affects the central nervous system, enhancing alertness and reducing tiredness.
Morphine
A powerful opiate analgesic drug derived from the opium poppy used to relieve severe pain.
Heroin
An opioid drug derived from morphine, known for its highly addictive properties and use as a recreational drug.
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