Increased Alertness

Caffeine blocks adenosine receptors in the brain, leading to increased neuronal activity and reduced feelings of fatigue. This results in enhanced alertness and cognitive function.

Caffeine, a stimulant, inhibits adenosine, a neurotransmitter that promotes relaxation and sleepiness. By blocking adenosine receptors in the brain, caffeine increases neuronal activity, leading to a subjective feeling of increased alertness, wakefulness, and reduced fatigue. This stimulation also enhances cognitive functions such as attention and concentration.