Which of the following is a sign of overtraining?

Persistent fatigue and decreased performance are hallmark signs of overtraining. This phenomenon occurs when the training load exceeds the body's ability to recover, leading to a range of negative physical and psychological symptoms. Individuals experiencing overtraining may feel chronically tired, sluggish, and may notice that their usual workouts feel disproportionately hard. Performance metrics, such as strength, endurance, and overall exercise output, commonly decline as the body struggles to cope with the stress of excessive training without adequate recovery. Monitoring for such signs is crucial for trainers and clients to ensure that training programs are effective and not detrimental to health and performance.

In contrast, increased energy levels, improved muscle tone, and faster recovery times are typically associated with effective training and progress, suggesting the body is adapting positively rather than being overwhelmed by stress.