Caffeine

Caffeine is a widely used natural stimulant found in various beverages and foods such as coffee, tea, chocolate, and certain energy drinks and supplements. It is valued primarily for its ability to enhance alertness and improve focus, making it a popular choice for individuals looking to boost their cognitive performance. The way caffeine works is by entering the bloodstream and traveling to the brain, where it blocks the action of a neurotransmitter known as adenosine. Adenosine typically promotes feelings of sleepiness and relaxation. By inhibiting this neurotransmitter, caffeine increases f...