There are several signs by which you can distinguish pathological exhaustion of the body from fatigue, Report informs with reference to the British nutritionist Clarissa Lenherr.
Mood changes are one of the signs of this phenomenon. They can manifest themselves in detachment, anxiety, depression. Besides, it does not go away after a good sleep and cause nervousness.
A sign of exhaustion is the so-called "brain fog": it becomes difficult for a person to think and reason, and problems with concentration are observed.