Definitions for "Overtraining"
Pushing the body hard enough during exercise that you risk injury or illness.
Overtraining is any training/exercise that leaves the body unable to recuperate and repair itself often resulting in fatigue and under-performance.
Condition caused by an excess of volume in a training routine that leads to muscle loss, strength loss and fat accumulation. Symptoms include depression, insomnia, lethargy and lack of energy.