Sleep debt or sleep deficit is the cumulative effect of not getting enough sleep. A large sleep debt may lead to mental and/or physical fatigue.
There are two kinds of sleep debt; partial sleep deprivation and total sleep deprivation. Partial sleep deprivation occurs when a person or a lab animal sleeps too little for many days or weeks. Total sleep deprivation means being kept awake for days or weeks. There is debate in the scientific community over the specifics of sleep debt, and it is not considered to be a disorder.
Read more about Sleep Debt: Scientific Debate, Evaluation, Across Society
Famous quotes containing the words sleep and/or debt:
“A song is no song unless the circumstance is free and fine. If a singer sing from a sense of duty or from seeing no way to escape, I had rather have none. Those only can sleep who do not care to sleep; and those only write or speak best who do not too much respect the writing or the speaking.”
—Ralph Waldo Emerson (1803–1882)
“They who have been bred in the school of politics fail now and always to face the facts. Their measures are half measures and makeshifts merely. They put off the day of settlement, and meanwhile the debt accumulates.”
—Henry David Thoreau (1817–1862)