From 1998 to 2005, Nicotine Levels in "Medium/mild" Cigarettes __________

question 94

Multiple Choice

From 1998 to 2005, nicotine levels in "medium/mild" cigarettes __________.

• A) doubled
• B) tripled
• C) decreased
• D) did not change

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Definitions:

Narcolepsy

A long-term neurological disorder that affects the brain's ability to control sleep-wake cycles, leading to excessive daytime sleepiness and sudden sleep attacks.

Irrepressible Need to Sleep

An overwhelming urge to sleep that cannot be easily controlled or suppressed.

Melatonin

A hormone produced by the pineal gland in the brain, regulating sleep and wakefulness cycles.

Biological Clocks

Internal mechanisms that regulate the timing of biological processes and behaviors, aligning them with daily and seasonal rhythms.