Common symptoms of overtraining include persistent fatigue, decreased performance, and lasting muscle soreness. Athletes may experience mood disturbances, such as irritability or anxiety, and disruptions in sleep patterns. Physical symptoms can also include increased incidence of injuries and a weakened immune response. Overtraining occurs when exercise intensity and volume exceed the body’s ability to recover. Awareness of these symptoms is essential for athletes and fitness enthusiasts to prevent long-term setbacks and maintain a healthy training balance.