Perception of Fatigue
The sense of fatigue is believed to originate in the reticular activating system of the lower brain. Musculoskeletal structures may have co-evolved with appropriate brain structures so that the complete unit functions together in a constructive and adaptive fashion. The entire systems of muscles, joints, and proprioceptive and kinesthetic functions plus parts of the brain evolve and function together in a unitary way.
Read more about this topic: Fatigue (medical)
Famous quotes containing the words perception of, perception and/or fatigue:
“Only by being guilty of Folly does mortal man in many cases arrive at the perception of Sense. A thought which should forever free us from hasty imprecations upon our ever-recurring intervals of Folly; since though Folly be our teacher, Sense is the lesson she teaches; since, if Folly wholly depart from us, Further Sense will be her companion in the flight, and we will be left standing midway in wisdom.”
—Herman Melville (1819–1891)
“Action from principle, the perception and the performance of right, changes things and relations; it is essentially revolutionary, and does not consist wholly with anything which was. It not only divides States and churches, it divides families; ay, it divides the individual, separating the diabolical in him from the divine.”
—Henry David Thoreau (1817–1862)
“I have just read your dispatch about sore tongued and fatiegued [sic] horses. Will you pardon me for asking what the horses of your army have done since the battle of Antietem that fatigue anything?”
—Abraham Lincoln (1809–1865)