Sleep deprivation

Sleep deprivation is a general lack of the necessary amount of sleep.

This may occur as a result of sleep disorders, active choice or deliberate inducement such as in interrogation or for torture

Physiological effects

Generally, lack of sleep may result in

• aching muscles
• blurred vision
• clinical depression
• colorblindness
• daytime drowsiness and naps,
• decreased mental activity and concentration
• dizziness
• dark circles under the eyes
• depersonalization/derealization
• delerium
• excessive daytime sleepiness (EDS)
• fainting
• general confusion
• hallucinations (visual and auditory)
• hand tremors
• headache
• hyperactivity
• hypertension
• impatience
• irritability
• lucid dreaming (once sleep resumes)
• memory lapses or loss
• nausea
• nystagmus
• psychosis-like symptoms
• pallor
• rapid involuntary rhythmic eye movement
• increased desire for sexual activity
• slowed reaction time
• slurred and/or nonsensical speech
• weight loss or gain
• weakened immune system
• severe yawning

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and symptoms similar to

• Attention-deficit Hyperactivity Disorder
• alcoholic intoxication

Diabetes

A 1996 study by the University of Chicago Medical Center showed that sleep deprivation severely affects the human body's ability to metabolize glucose, which can lead to early-stage Diabetes Type 2.

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