How can excessive caffeine consumption affect athletic performance?

Excessive caffeine consumption can indeed lead to dehydration and increased jitters, which can substantially impact athletic performance. Caffeine acts as a diuretic, particularly when taken in high doses, which can increase urine production and potentially lead to dehydration. This is critical for athletes, as dehydration can impair physical performance, reduce endurance, and enhance fatigue. Additionally, high levels of caffeine can cause symptoms like jitters, restlessness, and anxiety, which can interfere with an athlete's ability to maintain focus and perform optimally during competitions.

While caffeine at moderate levels can have some benefits, such as increased alertness and temporary boosts in performance, excessive intake typically detracts from these advantages and may even compromise overall athletic performance. Therefore, recognizing and managing caffeine consumption is essential for athletes aiming for the best possible outcomes during training and competition.