Caffeine consumption can significantly enhance athletic performance by increasing energy, improving focus, and reducing perceived effort during exercise. It stimulates the central nervous system, leading to heightened alertness and delayed fatigue. Many athletes utilize caffeine to boost endurance performance, allowing them to sustain activity longer and enhance overall training results. However, responses to caffeine are individual, and excessive intake may lead to negative effects like anxiety or gastrointestinal distress. Therefore, understanding personal tolerance is essential for maximizing its benefits in sports contexts.