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How do castes and class systems interact?
Caffeine
A stimulant compound found in coffee, tea, and other beverages that affects the central nervous system.
Stimulants
Drugs that increase alertness, attention, and energy by elevating the levels of certain neurotransmitters in the brain.
Nicotine
A stimulant drug found in tobacco products that's addictive and can have both stimulating and calming effects.
Amphetamines
A class of stimulant drugs that increase activity within the brain and nervous system and are used therapeutically for conditions like ADHD and narcolepsy.
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