Alcohol consumption negatively affects athletic performance by impairing reaction times, coordination, and recovery. It can lead to dehydration, hinder muscle growth, and disrupt sleep patterns, all of which are critical for athletes’ overall functioning. In addition, alcohol provides empty calories that can contribute to unwanted weight gain. Excessive consumption is also linked to increased risk of injury and chronic health issues, both of which can detract from performance. It's essential for athletes to be mindful of their alcohol intake to optimize their training and competition outcomes.