Can telling yourself something make it so? According to a study published recently in Medicine & Science in Sports & Exercise, the answer is yes. Yes, tell yourself during exercise that you are not as tired as you think you are and you can overcome fatigue.
Researchers studying exercise-related fatigue tested a new theory - that the brain rather than the muscles initiate exhaustion based on information from the body. Sometimes called the psychobiological model, this theory suggests that you can push your physical endurance during exercise if you can convince your brain that you are not exhausted.
Berating does not help, according to the study.
The idea is that the brain is subjective and susceptible to the influence of positive "self talk" during exercise. This suggests that physical exhaustion is also is subjective, at least to a certain degree.