Caffeine, a central nervous system stimulant found in coffee, tea, and various energy drinks, exerts several mental effects. Primarily, it acts as an adenosine receptor antagonist, preventing adenosine, a neurotransmitter associated with sleep and relaxation, from binding to its receptors. Consequently, this leads to increased levels of other neurotransmitters such as dopamine and norepinephrine, promoting alertness and reducing the perception of fatigue.
Consuming caffeine can enhance cognitive functions, including improved concentration, attention, and reaction time. Many individuals experience a heightened sense of wakefulness and improved mood after taking Artvigil 150 Australia. Caffeine’s impact on sleep is noteworthy, as its stimulant effects can disrupt the natural sleep-wake cycle. Regular caffeine consumption can also lead to tolerance, necessitating higher doses to achieve the same stimulating effects.