Excessive caffeine consumption can negatively affect physical performance by leading to increased heart rate, anxiety, and gastrointestinal distress. While moderate caffeine can boost energy and focus, too much can hinder athletic performance, resulting in reduced endurance and increased fatigue during exercise. Caffeine may also disrupt sleep patterns, negatively impacting recovery and ultimately performance. Additionally, individuals may develop a tolerance, necessitating higher doses for the same effects, which can create dependency. Therefore, maintaining moderate caffeine intake is essential for optimizing physical performance and overall health.