National Sleep Foundation has created a list of 25 random facts about sleep. But we're not restricting this information to our 25 closest friends. Share it with. 4 days ago Sleep is an important part of your daily routine—you spend about one-third of your time doing it. Quality sleep – and getting enough of it at the. Sleep walking is one thing, but did you know you can also eat in your sleep? We found seven of the weirdest things that can happen while you are sleeping.
In almost all societies, sleeping partners are strongly regulated by social standards. For example, a person might only sleep with the immediate family , the extended family , a spouse or romantic partner, children, children of a certain age, children of specific gender, peers of a certain gender, friends, peers of equal social rank, or with no one at all. Sleep may be an actively social time, depending on the sleep groupings, with no constraints on noise or activity. People sleep in a variety of locations.
Some sleep directly on the ground; others on a skin or blanket; others sleep on platforms or beds. Some sleep with blankets, some with pillows, some with simple headrests, some with no head support. These choices are shaped by a variety of factors, such as climate, protection from predators, housing type, technology, personal preference, and the incidence of pests. Sleep has been seen in culture as similar to death since antiquity;  in Greek mythology , Hypnos the god of sleep and Thanatos the god of death were both said to be the children of Nyx the goddess of night.
Many cultural stories have been told about people falling asleep for extended periods of time. A far more famous instance of a "long sleep" today is the Christian legend of the Seven Sleepers of Ephesus ,  in which seven Christians flee into a cave during pagan times in order to escape persecution ,  but fall asleep and wake up years later to discover, to their astonishment, that the Roman Empire is now predominantly Christian.
Writing about the thematical representations of sleep in art, physician and sleep researcher Meir Kryger noted: The Sentry by Carel Fabritius. Diana and Endymion c. Lullaby by William-Adolphe Bouguereau. Victory of Faith by Saint George Hare. From Wikipedia, the free encyclopedia. This article is about sleep in humans. For non-human sleep, see Sleep non-human. For other uses, see Sleep disambiguation. For other uses, see Waking up disambiguation.
Wakefulness and Ascending reticular activating system. Circadian rhythm sleep disorder. Sleep and learning , Sleep and creativity , and Sleep and memory. Psychological stress and Sleep. This section needs expansion. You can help by adding to it. Taking a Rest by Ilya Repin. Sleeping Jaguar , by Paul Klimsch. Retrieved 24 May Retrieved 25 January How the lightbulb disrupted our sleeping patterns and changed the world".
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Retrieved on 1 December Retrieved on 10 February P; Mikic, A; Pietrolungo, C. Toward a comparative developmental ecology of human sleep" PDF. A comparative developmental ecology. Science News Online 25 September Pre-industrial slumber in the British Isles". The American Historical Review. Retrieved 22 February The American Muslim Teenager's Handbook. Sociological Ventures Into the Un known. Celtic Myth and Religion: The Life of Washington Irving.
New York City, New York: Retrieved 21 June The Journal of New York Folklore. The Popular Religious Context of Acts Retrieved 14 July Behavioral epigenetics Behavioral genetics Cellular neuroscience Computational neuroscience Connectomics Imaging genetics Integrative neuroscience Molecular neuroscience Neural engineering Neuroanatomy Neurochemistry Neuroendocrinology Neurogenetics Neuroinformatics Neurometrics Neuromorphology Neurophysics Neurophysiology Systems neuroscience.
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Hypersomnia Insomnia Kleine—Levin syndrome Narcolepsy Sleep apnea Central hypoventilation syndrome Obesity hypoventilation syndrome Sleep state misperception. Advanced sleep phase disorder Delayed sleep phase disorder Irregular sleep—wake rhythm Jet lag Nonhour sleep—wake disorder Shift work sleep disorder. Catathrenia Night terror Rapid eye movement sleep behavior disorder Sleepwalking Somniloquy. Bruxism Cyclic alternating pattern Night eating syndrome Nocturia Nocturnal myoclonus.
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Used to refer to daily self-care activities. People vary in how little sleep is needed to be considered sleep-deprived. Some people such as older adults seem to be more resistant to the effects of sleep deprivation, while others, especially children and young adults, are more vulnerable. Although occasional sleep interruptions are generally no more than a nuisance, ongoing lack of sleep can lead to excessive daytime sleepiness, emotional difficulties, poor job performance, obesity and a lowered perception of quality of life.
There is no questioning the importance of restorative sleep, and a certain amount of attention is necessary to both manage and prevent sleep deprivation. This Medical News Today Knowledge Center article examines the consequences of sleep deprivation, along with what can be done to treat and prevent it. Here are some key points about sleep deprivation. More detail and supporting information is in the main article. The main symptom of ongoing sleep loss is excessive daytime sleepiness, but other symptoms include:.
It can have the following impact:. Some groups of people may consider sleep as wasted time and purposely deprive themselves of sleep to pursue other things such as entertainment, educational goals, or money-making pursuits.
Others may unintentionally not get enough sleep because of shift work, family obligations, or demanding jobs. Consistent sleep-wake patterns of going to bed late, frequent nighttime arousals, or waking up early can lead to sleep deprivation and the accumulation of sleep debt.
Additional causes of sleep deprivation include medical problems such as depression , obstructive sleep apnea , hormone imbalances, and other chronic illnesses. Treatment is only required when a person physically cannot get to sleep, due to either physical or psychological difficulties. A therapist or sleep specialist will be able to offer guidance and coping techniques for reaching a restful state and sleeping.
There are two main avenues of treatment for sleep deprivation: Behavioral and cognitive measures and medications. There are a number of effective methods to enhance sleep that do not require medication, including:.
When non-medicinal treatment is not effective, drugs are available that can help induce sleep. Some are available over-the-counter OTC , and some are only available with a valid prescription. There is a wide range of available options, including benzodiazepines, non-benzodiazepine hypnotics, and melatonin receptor antagonists.
However, some people form a dependency on sleeping medications. It is important to limit the dosage and try to use non-medicinal measures where possible. The good news is that most of the negative effects of sleep deprivation reverse when sufficient sleep is obtained.
The treatment for sleep deprivation is to satisfy the biological sleep need, prevent deprivation and "pay back" accumulated sleep debt. When you fail to get your required amount of sufficient sleep you start to accumulate a sleep debt. For example, if you need 7 hours of sleep nightly to feel awake and alert and only get 5 hours, you have a sleep debt of 2 hours. If you continue that pattern for five nights, you have an accumulated sleep debt of 10 hours. The only way to erase a sleep debt is to get more sleep.
Depending on the scale of the sleep debt, it may take some time to recover fully. However, the positive effects of paying this debt off will be felt quickly. To pay back a sleep debt, it is necessary to start getting the sleep you need, plus an additional hour or so per night, until the debt is paid. Afterwards, the required amount of sleep can be resumed without the additional hour.
Even if the sleep debt is hundreds or even thousands of hours, it can still be successfully reconciled with a conscious effort to restructure obligations, and allowing sufficient time off to recover.
You will know you have paid back your sleep debt when you wake up feeling refreshed, and you do not feel excessively drowsy during the day.
If sleep deprivation is ongoing, and negative symptoms persist despite practicing good sleep hygiene measures, consultation with a healthcare provider is recommended.
The first step for recognizing a sleep problem is to keep a written sleep history in a sleep log. Write down each day how many hours sleep you have, how many times per night you wake up, how rested you feel after waking up, and any feelings of sleepiness you experience during the day. If you have a partner, it may be worth asking them to note any snoring, gasping, or limb-jerking, as a doctor may also ask about this.
It will then be possible to present this information to any doctor you visit in a meaningful way. Sleep specialists can also identify a pattern using a polysomnogram, or sleep study.
This is carried out in a sleep laboratory. Electrodes are placed at various points on the body, including the scalp and face. The person with suspected sleep deprivation will sleep overnight at a sleep clinic, and these monitors will measure breathing, blood, heart rate and rhythm, muscle activity, and brain and eye movements during sleep.
Especially in those who wilfully sleep too little, diagnosis can be as simple as recognizing that you do not get enough sleep and deciding to make changes. Sleep deprivation weakens the ability of the part of the brain that handles reasoning, known as the prefrontal cortex, to control the emotional part, the amygdala. This leads to the abnormal processing of emotions.
Sleep also appears to be necessary to prepare the brain for learning. When the brain is deprived of sleep, it is difficult to concentrate and form new memories. When we stay awake all night or significantly cut sleep short, the body does not release the hormones necessary to regulate growth and appetite, and instead forms an overabundance of stress chemicals, such as norepinephrine and cortisol.
Research suggests shorter sleep durations may be a predictor of weight gain in adults and children. Each 1 hour reduction in sleep time per day is associated with an increase of 0. These changes result in an increased risk for hypertension , diabetes , obesity, heart attack , and stroke in the sleep-deprived individual.
Sleep loss can have a profound impact on both emotional function and normal thinking abilities in healthy individuals, resulting in:. Sleep-deprived people are more likely to report increased feelings of worthlessness, inadequacy, powerlessness, failure, low self-esteem, poor job performance, conflicts with coworkers, and reduced quality of life.
Many of these deficits remain even when alertness is sustained with stimulants such as caffeine. Finally, sleep-deprived individuals score higher on clinical scales measuring depression, anxiety , and paranoia. After around 16 hours of staying awake, the body attempts to balance the need for sleep.
If a person does not get enough sleep, the brain obtains sleep through short sleep attacks called microsleeps. This is an uncontrollable brain response that renders a person unable to process environmental stimulation and sensory information for a brief amount of time.
A person's eyes often remain open during microsleeps, but they are essentially "zoned out. Microsleeps will continue to occur despite an individual's forced attempt to stay awake, and because of this inbuilt sleep mechanism, it is extremely difficult for an individual to remain awake for more than 48 hours straight.
Sleep deprivation can be linked to serious accidents and poor job or school performances. It can substantially lower an individual's overall quality of life. Lack of sleep disrupts the brain's ability to balance emotions and thinking abilities, lowers the body's natural defenses, and increases the chances of developing chronic medical problems. While the occasional poor night's sleep is not a serious problem in itself, persistent sleep deprivation can be.
Myths, Mysteries and Misinformation: Common Sleep Myths, Debunked
This is the classic not-so-shut-eye experience of many Americans who think they are sleep-deprived and possibly need pills or other treatment. All you need to know about sleep. Sleep better, fall asleep easier, and wake up happier. Learn how to identify the most common sleep disorders. We bet you were never aware of these facts about sleep.