Common indicators of overtraining in athletes include persistent fatigue, decreased performance, and mood disturbances such as irritability and anxiety. Athletes may also experience prolonged muscle soreness, increased frequency of injuries, and disruptions in sleep patterns. Changes in appetite and irregularities in heart rate can also signal overtraining. Monitoring these signs is crucial for athletes to adjust their training programs. Adequate rest and recovery are essential to prevent burnout and ensure continued progress in training and competition.