Research on Caffeine Effects

Research on caffeine effects examines how this widely consumed stimulant influences our bodies and minds. Studies show caffeine can increase alertness, improve focus, and temporarily reduce fatigue by blocking sleep-inducing chemicals in the brain. It may also boost athletic performance and mood. However, excessive intake can cause side effects like jitteriness, sleep disturbances, and increased heart rate. Long-term effects are still being studied, but moderate consumption appears to be safe for most adults. Overall, caffeine's effects depend on individual sensitivity, amount consumed, and timing.