Whois & Analysis for sleepjunkie.org

Sleep deprivation is the condition of not having enough sleep; it can be either chronic or acute.

A chronic sleep-restricted state can cause fatigue, daytime sleepiness, clumsiness and weight loss or weight gain.

It adversely affects the brain and cognitive function.

However, in a subset of cases sleep deprivation can, paradoxically, lead to increased energy and alertness and enhanced mood; it has even been used as a treatment for depression (see below).

Few studies have compared the effects of acute total sleep deprivation and chronic partial sleep restriction.

Complete absence of sleep over long periods has not been seen in humans (unless they suffer from fatal familial insomnia); it appears that brief microsleeps cannot be avoided.

Long-term total sleep deprivation has caused death in lab animals.

A mattress is a large pad for supporting the reclining body, used as a bed or as part of a bed.

Mattresses may consist of a quilted or similarly fastened case, usually of heavy cloth, that contains hair, straw, cotton, foam rubber, etc., or a framework of metal springs.

Mattresses may also be filled with air or water.

Substance abuse, also known as drug abuse, is a patterned use of a drug in which the user consumes the substance in amounts or with methods which are harmful to themselves or others, and is a form of substance-related disorder.

Widely differing definitions of drug abuse are used in public health, medical and criminal justice contexts.

In some cases criminal or anti-social behavior occurs when the person is under the influence of a drug, and long term personality changes in individuals may occur as well.

In addition to possible physical, social, and psychological harm, use of some drugs may also lead to criminal penalties, although these vary widely depending on the local jurisdiction.

Sleep is a naturally recurring state of mind and body characterized by altered consciousness, relatively inhibited sensory activity, inhibition of nearly all voluntary muscles, and reduced interactions with surroundings.

It is distinguished from wakefulness by a decreased ability to react to stimuli, but is more easily reversed than the state of being comatose.

Sleep occurs in repeating periods, in which the body alternates between two highly distinct modes known as non-REM and REM sleep.

Although REM stands for "rapid eye movement", sleep affects other brain-body functions, including virtual paralysis of the body.