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:
“No one has ever seen a Republican mass meeting that was devoid of the perception of the ludicrous.”
—Mark Twain [Samuel Langhorne Clemens] (1835–1910)
“The perception of the comic is a tie of sympathy with other men, a pledge of sanity, and a protection from those perverse tendencies and gloomy insanities in which fine intellects sometimes lose themselves. A rogue alive to the ludicrous is still convertible. If that sense is lost, his fellow-men can do little for him.”
—Ralph Waldo Emerson (1803–1882)
“Avarice is generally the last passion of those lives of which the first part has been squandered in pleasure, and the second devoted to ambition. He that sinks under the fatigue of getting wealth, lulls his age with the milder business of saving it.”
—Samuel Johnson (1709–1784)