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1. Improved Alertness and Focus
Coffee’s main active ingredient, caffeine, blocks a brain chemical called adenosine, which normally promotes sleepiness.
As a result, caffeine can:
Improve concentration
Increase reaction time
Enhance mental clarity
These effects typically begin 15–45 minutes after drinking coffee.
2. Mood Enhancement
Coffee can stimulate the release of dopamine and serotonin, two neurotransmitters associated with mood and well-being.
Studies have shown that moderate coffee consumption (2–4 cups per day) may be linked to:
Lower risk of depression
