Inadequate sleep severely affects physical performance by impairing recovery, mental focus, and energy levels. Lack of sleep can lead to decreased muscle strength, reduced endurance, and slowed reaction times, which can compromise workout quality and overall performance. Furthermore, insufficient sleep disrupts hormonal balance, affecting hormones like cortisol and testosterone, critical for recovery and muscle building. Chronic sleep deprivation increases the likelihood of injuries and decreases motivation to exercise. Prioritizing restorative sleep is essential for maximizing athletic performance and promoting overall well-being.