Sleep deprivation negatively affects physical performance by impairing reaction time, coordination, and overall endurance. Insufficient sleep disrupts the body’s ability to repair and recover, leading to decreased energy levels and increased fatigue during workouts. This can lead to a reduced capacity for maintaining intensity and focus, ultimately affecting athletic performance. Chronic lack of sleep can also increase the risk of injuries due to impaired judgment and slower response times. Prioritizing quality sleep is essential for optimizing physical performance and overall health.