Signs of overtraining include persistent fatigue, decreased performance, and increased incidence of injuries. Individuals may experience mood changes, such as irritability or anxiety, alongside sleep disturbances. Physical symptoms can encompass muscle soreness, frequent illness, and lack of motivation to train. Overtraining occurs when inadequate recovery and excessive training volume result in diminished returns. Recognizing these indicators is vital for athletes and fitness enthusiasts to adjust their training plans, allowing for proper rest and recovery to prevent long-term damage and burnout. Listening to the body is essential for balanced training.