Common symptoms of overtraining syndrome include persistent fatigue, decreased performance, irritability, and disrupted sleep patterns. Individuals may experience increased susceptibility to infections and greater feelings of burnout, hindering motivation to engage in physical activities. Additionally, physical symptoms such as muscle soreness, joint pain, and increased resting heart rate may arise. Recognizing these signs is crucial for athletes and fitness enthusiasts in order to adjust training intensity or rest adequately, facilitating recovery. Addressing overtraining can help maintain long-term fitness progress and prevent negative impact on both physical and mental health.