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Nicotine promotes wakefulness through cholinergic receptors in the basal forebrain.


Polysomnographic studies show that nicotine consumption increases the time it takes to fall asleep, shortens total sleep duration, increases early awakening, and suppresses REM and slow-wave sleep. However, the subjective impression of smokers does not always correspond to these observations.

The effect on sleep when you quit smoking is worsening and can last up to 3-4 weeks. with a specialist doctor.

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