• asleep
  • Sexsomnia, also known as sleep sex, is a distinct form of parasomnia, or an abnormal activity that occurs while an individual is asleep. (wikipedia.org)
  • Sleep walking may involve sitting up and looking awake when the individual is actually asleep, and getting up and walking around, moving items or undressing themselves. (wikipedia.org)
  • In any case, when we have trouble falling asleep or we keep waking in the night, our sleep cycles get interrupted and we are deprived of the healing effects of sleep. (chopra.com)
  • The viscous circle is that a hypnic jerk which wakes you up can make you anxious about falling asleep, which leads to another jerk. (blogspot.com)
  • One drink before bed may help you to fall asleep and avoid the hypnic jerk, however it will reduce the quality of your later sleep. (blogspot.com)
  • Commonly reported sleep disturbances include difficulty falling asleep, staying asleep, and feeling rested in the mornings. (google.com)
  • Sleep sex, or sexsomnia, is a condition in which a person will engage in sexual acts while still asleep. (wikipedia.org)
  • Shift work sleep disorder is also associated with falling asleep at work. (wikipedia.org)
  • Awakening can mean the end of sleep, or simply a moment to survey the environment and readjust body position before falling back asleep. (wikipedia.org)
  • The onset of slow-wave sleep occurs approximately 30 minutes after falling asleep, therefore a nap should be limited to under 30 to prevent waking during slow-wave sleep and enhancing sleep inertia. (wikipedia.org)
  • Exploding head syndrome (EHS), alternately termed episodic cranial sensory shock, is a benign condition in which a person hears loud "imagined" noises (such as a bomb exploding, a gunshot, or a cymbal crash) or experiences an explosive feeling[clarification needed] when falling asleep or waking up. (wikipedia.org)
  • International Classific
  • Three systems of classification are in use worldwide: the International classification of diseases (ICD) developed by the World Health Organization (WHO) and intended for use by general and more specialized practitioners, the Diagnostic and Statistical Manual (DSM) from the American Psychiatric Association (APA) for psychiatrists and general practitioners, and the International classification of sleep disorders (ICSD), an advanced system cultured by the American Academy of Sleep Medicine (AASM) for sleep specialists. (wikipedia.org)
  • The International Classification of Sleep Disorders (ICSD) was produced by the American Academy of Sleep Medicine (AASM) in association with the European Sleep Research Society, the Japanese Society of Sleep Research, and the Latin American Sleep Society. (wikipedia.org)
  • The International Classification of Sleep Disorders (ICSD) uses a multiaxial system for stating and coding diagnoses both in clinical reports or for database purposes. (wikipedia.org)
  • Proposed Sleep Disorders In 2005, the International Classification of Sleep Disorders underwent minor updates and modifications resulting in version 2 (ICSD-2). (wikipedia.org)
  • The International Classification of Sleep Disorders, Revised (ICSD-R) (PDF). (wikipedia.org)
  • The International Classification of Sleep Disorders, Second Edition (ICSD-2). (wikipedia.org)
  • The International Classification of Sleep Disorders, Third Edition (ICSD-3). (wikipedia.org)
  • International Classification of Sleep Disorders 3rd Ed. Darien, IL USA: American Academy of Sleep Medicine. (wikipedia.org)
  • Exploding head syndrome is classified as a parasomnia and a sleep-related dissociative disorder by the 2005 International Classification of Sleep Disorders and is an unusual type of auditory hallucination in that it occurs in people who are not fully awake. (wikipedia.org)
  • apnea
  • New research presented at the Alzheimer's Association International Conference in London shows a direct link between interrupted sleep from conditions like sleep apnea and the risk of developing Alzheimer's disease. (emaxhealth.com)
  • rapid
  • Dreaming occurs in the fifth stage, during rapid eye movement (REM) sleep. (thefreedictionary.com)
  • In the 20th century, increasingly in the last half of it, technological discoveries led to rapid advances in the understanding of sleep and recognition of sleep disorders. (wikipedia.org)
  • First is for documentation of the onset of rapid eye movement (REM) sleep, and second is to note the presence of slow-rolling eye movements that usually accompany the onset of sleep. (medscape.com)
  • Significantly, the researchers determined that the amount of plasticity in the brain depended on the amount of sleep known as non-rapid eye movement, a deep, quiet, slumber marked by large, slow brain waves. (mojblog.hr)
  • Non-REM sleep alternates with periods of rapid eye movement, or so-called "dream" sleep, a period marked by rapidly changing brain waves and rapid bursts of eye movement. (mojblog.hr)
  • Although REM stands for "rapid eye movement", this mode of sleep has many other aspects, including virtual paralysis of the body. (wikipedia.org)
  • symptoms
  • Insomnias were classified as primary and secondary till 1970 when they were recognized as symptoms of other disorders. (wikipedia.org)
  • Schizophrenia (SZ) and bipolar disorder (BP) share significant overlap in clinical symptoms, brain characteristics, and risk genes, and both are associated with dysconnectivity among large-scale brain networks. (frontiersin.org)
  • Chronotypes Noise health effects Polysomnography Polysomnographic technician Reversed vegetative symptoms Sleep hygiene Sleep medicine Sleep study Sundowning (dementia) White noise machine American Academy of Sleep Medicine (2001). (wikipedia.org)
  • The symptoms coincide with the duration of shift work and usually remit with the adoption of a conventional sleep-wake schedule. (wikipedia.org)
  • citation needed] Symptoms typically only fully resolve once a normal sleep schedule is resumed. (wikipedia.org)
  • The duration of symptoms varies on a conditional basis, with primary expression during the first 15-60 minutes after waking and potentially extending for several hours. (wikipedia.org)
  • Nonetheless, individual degree of consumption and tolerance to caffeine may be responsible for variation in its efficacy to reduce sleep inertia symptoms. (wikipedia.org)
  • Also, behavioral problems in dogs may be factors that influence these symptoms (i.e. lack of housetraining, lack of social interaction, separation anxiety, phobias, aggression and compulsive disorders). (wikipedia.org)
  • behaviors
  • Prior to the writing and publication of the review, Dr. Schenck and his colleagues conducted computerized literature searches of peer-reviewed journal articles and looked through textbooks and other sources for information on sexual activity during sleep or sexual behaviors associated with sleep disorders. (emaxhealth.com)
  • Risk predictors for hypnosedative-related complex sleep behaviors: a retrospective, cross-sectional pilot study. (mdedge.com)
  • naturally
  • Wake up in 4 minutes by naturally stimulating your brain with light. (iphonecake.com)
  • Blue Light Therapy App naturally wakes up your brain by stimulating suprachiasmatic nucleus, a brain region is activated by blue light and responsible for sleep to wake transition. (iphonecake.com)
  • So when the sun rises, our body naturally becomes more alert and active, and as the sun sets, our body increases its level of natural chemicals such as melatonin that start to slow us down and prepare us for sleep. (chopra.com)
  • The techniques taught in even the most basic class may be enough to allow you to get your mind in a state where sleep comes naturally. (blogspot.com)
  • 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. (wikipedia.org)
  • The sleep process is smoothened out in hypnogram results unlike it occurs naturally. (wikipedia.org)
  • inertia
  • However, naps that are too long (over 20-30 minutes) may generate sleep inertia, a groggy feeling after awakening that can impair performance. (wikipedia.org)
  • Sleep inertia is a physiological state of impaired cognitive and sensory-motor performance that is present immediately after awakening. (wikipedia.org)
  • Impairment from sleep inertia may take several hours to dissipate. (wikipedia.org)
  • In the majority of cases, morning sleep inertia is experienced for 15 to 60 minutes after waking. (wikipedia.org)
  • Sleep inertia is of concern when decision-making abilities, safety-critical tasks and the ability to operate efficiently are important soon after awakening. (wikipedia.org)
  • the accuracy of sensory and motor functioning is more impaired by sleep inertia as compared to sheer speed. (wikipedia.org)
  • In order to measure the cognitive and motor deficiencies associated with sleep inertia, a battery of tests may be utilized including psychomotor vigilance task, descending subtraction task, auditory reaction time task, and the finger tapping task. (wikipedia.org)
  • Therefore, an individual who was previously sleep deprived will have a greater chance of experiencing sleep inertia. (wikipedia.org)
  • This 15 minute time period corresponds to the sleep inertia period. (wikipedia.org)
  • There has been a great deal of research into potential methods to relieve the effects of sleep inertia. (wikipedia.org)
  • The demand for remedies is driven by the occupational hazards of sleep inertia for employees who work extended shifts such as medical professionals, emergency responders, or military personnel. (wikipedia.org)
  • Below are some of the various methods that have been suggested to combat sleep inertia. (wikipedia.org)
  • When sleep deprived, re-entering sleep may provide a viable route to reduce mental and physical fatigue but this can also induce sleep inertia. (wikipedia.org)
  • Furthermore, self-awakening from a short nap was shown to relieve disorientation of sleep inertia as opposed to a forced awakening but these results may warrant more research into the nature of arousal after sleep periods. (wikipedia.org)
  • Previous research has shown that coupled with a short nap, the proactive administration of caffeine prior to the nap can alleviate the effects of sleep inertia. (wikipedia.org)
  • The natural light provided by the morning sunrise may contribute to sleep inertia effects. (wikipedia.org)
  • cycles
  • Sleep cycles vary with a person's age. (thefreedictionary.com)
  • Normal sleep cycles include states varying from drowsiness all the way to deep sleep. (wikipedia.org)
  • The Ayurvedic approach to improving sleep is to encourage balance in both our inner and our outer environments, restoring the rhythm of our natural sleep-wake cycles. (chopra.com)
  • There is a greater amount of deep sleep (stage N3) earlier in the night, while the proportion of REM sleep increases in the two cycles just before natural awakening. (wikipedia.org)
  • night
  • One of the key characteristics of Alzheimer's disease is the inability to sleep consistently at night while struggling to remain awake during the day. (emaxhealth.com)
  • Most people sleep between seven and nine hours a night. (thefreedictionary.com)
  • It is not unusual for people in North America and Europe to sleep about 40 minutes longer per night during the winter. (thefreedictionary.com)
  • While parasomnia disorders like somnabulism (sleep walking), sleep talking, and night terrors are widely researched and discussed, lack of research and hesitance associated with the discussion of the disorder arises from its sexually aggressive nature. (wikipedia.org)
  • A single-night PSG is usually adequate to determine if OSAS is present and the degree of the disorder. (medscape.com)
  • Do you frequently wake up throughout the night, unable to drift back into a restful slumber? (chopra.com)
  • Marie's primary care doctor had initially prescribed a medication that helped somewhat, but as she continued to take it the effectiveness diminished and she started to wake up in the night despite taking the medication. (chopra.com)
  • The day after I counseled her on suggestions to improve her sleep based on Ayurvedic principles, I found her waiting for me excitedly outside of my door, bursting with the news, "Doctor, last night I slept all night for the first time in three years! (chopra.com)
  • Follow good sleep hygiene , develop a routine and follow it every night. (blogspot.com)
  • Regular exercising is one of the options to ensure sound sleep at night. (blogspot.com)
  • Altogether, if you are unable to get adequate sleep during night, you can undertake certain initiatives to overcome your sleep problems such as fixing your sleeping as well as waking schedule and abstaining from alcohol, nicotine, tea, coffee et al before hitting the bed. (blogspot.com)
  • Total daily sleep time is usually shortened and sleep quality is less in those who work night shifts compared to those who work day shifts. (wikipedia.org)
  • Brain arousal is stimulated by the circadian system during the day and sleep is usually stimulated at night. (wikipedia.org)
  • The internal circadian clock promotes sleep daily at night. (wikipedia.org)
  • A normal healthy adult requires 7-9 hours of sleep per night. (wikipedia.org)
  • Researchers
  • Although sleep is a basic behavior in animals as well as humans, researchers still do not completely understand all of its functions in maintaining health. (thefreedictionary.com)
  • University of California, San Francisco researchers are reporting direct evidence that sleep in early life may play a crucial role in brain development. (mojblog.hr)
  • In their study, the researchers examined the effect of sleep on brain plasticity after cats experienced an environmental challenge. (mojblog.hr)
  • While the study focused specifically on the impact of sleep on neuronal remodeling during the critical period for visual development in the cat, the researchers believe the finding has broader implications, not just for plasticity during development in other brain structures. (mojblog.hr)
  • In either case, the new evidence that sleep appears to play a significant role in brain development puts researchers an important step closer to solving a mystery that has persisted for decades. (mojblog.hr)
  • Sleep researchers also use simplified electrocardiography (EKG) for cardiac activity and actigraphy for motor movements. (wikipedia.org)
  • diagnoses
  • Diagnoses of sleep disorders are based on self-assessment questionnaires, clinical interview, physical examination and laboratory procedures. (wikipedia.org)
  • The axial system is arranged as follows: Axis A ICSD Classification of Sleep Disorders Axis B ICD-9-CM Classification of Procedures Axis C ICD-9-CM Classification of Diseases (nonsleep diagnoses). (wikipedia.org)
  • ICSD-3 includes 60 specific diagnoses within the seven major categories, as well as an appendix for classification of sleep disorders associated with medical and neurologic disorders. (wikipedia.org)
  • Furthermore, pediatric diagnoses are not distinguished from adult diagnoses except for sleep-related breathing disorders. (wikipedia.org)
  • onset
  • He stated that the pathways that regulated sleep onset are located between the brain stem and the basal forebrain. (wikipedia.org)
  • His discoveries were not appreciated until the last two decades of the 20th century when the pathways of sleep onset were found to reside in the exact place that Constantin von Economo stated. (wikipedia.org)
  • Sleep onset is finally induced by sleep-promoting neurons, located in the ventrolateral preoptic nucleus (VLPO). (wikipedia.org)
  • neuronal
  • One theory is that patterned neuronal activity following a period of environmental stimulation is replayed during non-REM sleep, strengthening neuronal connection changes. (mojblog.hr)
  • medications
  • In addition, sleep disorders can result from medical or psychiatric conditions and from medications or other substances used to treat these conditions. (chopra.com)
  • Very often the easy solution to poor sleep is medication, and in the past six years, the number of prescriptions given for sleeping medications have more than doubled. (chopra.com)
  • The effects of certain medications on sleep architecture can be visualised on a hypnogram. (wikipedia.org)
  • Seasonal Affectiv
  • I hope that this app would help some people deal with yet another year of Seasonal Affective Disorder, but please understand that 200 lumen, white-light based backlight of iPhone may not produce the same results as 10000lumen dedicated light box. (iphonecake.com)
  • After the discovery in the early 1980s of light therapy for seasonal affective disorder, at the National Institute of Mental Health, Terman turned to clinical therapeutics, with a focus on non-pharmacologic antidepressant responses to circadian light schedules. (wikipedia.org)
  • bedtime
  • The person may then associate all sleep-related things (their bed, bedtime, etc.) with frustration, making the problem worse. (encyclopedia.com)
  • Ayurveda recommends a bedtime around 10 p.m. to take advantage of the natural cycle of slowing down (Kapha principle), and a waking time of around 6 a.m. or approximately the time of the sunrise. (chopra.com)
  • Typically, the secretion of melatonin begins two hours before bedtime and ends two hours prior to waking up. (wikipedia.org)
  • sudden
  • Other theories into causes of EHS include: Minor seizures affecting the temporal lobe Ear dysfunctions, including sudden shifts in middle ear components or the Eustachian tube, or a rupture of the membranous labyrinth or labyrinthine fistula Stress and anxiety Variable and broken sleep, associated with a decline in delta sleep Antidepressant discontinuation syndrome Temporary calcium channel dysfunction. (wikipedia.org)
  • state
  • Notably, results suggest that patients make fewer transitions to some states (states 1, 2, and 4) compared to HCs, with most such differences confined to a single state. (frontiersin.org)
  • They are caused by a physiological activation in which the patient's brain exits from SWS and is caught in between a sleeping and waking state. (wikipedia.org)
  • even flies may have a state like sleep. (mojblog.hr)
  • One-third of our lives are spent in the sleeping state, and yet with today's hectic, fast-paced life our inherent need for rest is often not achieved or prioritized. (chopra.com)
  • Instead, the fragmented behavior of orexin KO mice may be best described as behavioral state instability, with apparently low thresholds to transition between states. (jneurosci.org)
  • When an individual first begins to sleep, stage 1 is entered, marked by the presence of some theta activity, which indicates that the firing of neurons in the neocortex is becoming more synchronized, as well as alpha wave activity (smooth electrical activity of 8-12 Hz recorded from the brain, generally associated with a state of relaxation). (wikipedia.org)
  • During a night's sleep, a small portion is usually spent in a waking state. (wikipedia.org)
  • An altered state of consciousness (ASC), also called altered state of mind or mind alteration, is any condition which is significantly different from a normal waking state. (wikipedia.org)
  • An altered state is any mental state(s), induced by various physiological, psychological, or pharmacological maneuvers or agents, which can be recognized subjectively by the individual himself (or by an objective observer of the individual) as representing a sufficient deviation in subjective experience of psychological functioning from certain general norms for that individual during alert, waking consciousness. (wikipedia.org)
  • Starting from this Charles Tart focuses his definition on the subjective experience of a state of consciousness and its deviation from a normal waking state. (wikipedia.org)
  • There is a protocol defined by the American Academy of Sleep Medicine (AASM) for sleep scoring, whereby the sleep or wake state is recorded in 30-second epochs. (wikipedia.org)
  • During rest following a sleep-deprived state, there is a period of rebound sleep which has longer and deeper episodes of SWS to make up for the lack of sleep. (wikipedia.org)
  • One of the important questions in sleep research is clearly defining the sleep state. (wikipedia.org)
  • This problem arises because sleep was traditionally defined as a state of consciousness and not as a physiological state, thus there was no clear definition of what minimum set of events constitute sleep and distinguish it from other states of partial or no consciousness. (wikipedia.org)
  • brain
  • Their study, the cover story in the April 26 issue of Neuron, indicates that sleep dramatically enhances changes in brain connections during a critical period of visual development in cats, says the lead author of the study, Marcos G. Frank, PhD, a postdoctoral fellow in the laboratory of senior author Michael P. Stryker, PhD. (mojblog.hr)
  • They determined that animals allowed to sleep for six hours after the period of environmental stimulation developed twice the amount of brain change as those cats kept awake during that time. (mojblog.hr)
  • The animals that were allowed to sleep even had slightly more brain change than the animals whose environmental challenge continued during the additional six hours. (mojblog.hr)
  • This is the first direct evidence that sleep modifies the effect of environmental stimuli on the development of new brain connections," says Frank. (mojblog.hr)
  • The fact that sleep provoked slightly more plasticity than double the amount of exposure to experience [when cats remained awake in a lit room] suggests that if you reviewed your notes thoroughly until you were tired and then slept, you'd achieve as much plasticity, or 'learning,' in the brain as if you'd pulled an all-nighter repeating your review of the material," says Stryker. (mojblog.hr)
  • We do know that other growth factors are released during sleep and we also known that these neurotrophins play a role in learning and making the synapses of the brain stronger and weaker," says co-author Naoum P. Issa, PhD, a postdoctoral fellow in the Stryker lab. (mojblog.hr)
  • But despite great progress in our understanding of the regulation and neurobiology of sleep, as well as the consequences of sleep loss on human performance, why the brain needs sleep has remained a mystery," says Frank. (mojblog.hr)
  • It will give your brain something to do instead of worrying and may quickly become an essential part of your sleep routine. (blogspot.com)
  • He continued to refine his technique and increase the sensitivity to the galvanometer, in which he accumulated many EEGs of individuals with and without a brain malfunction or disorder. (wikipedia.org)
  • During the 1920s an obscure disorder that caused encephalitis and attacked the part of the brain that regulates sleep influenced Europe and North America. (wikipedia.org)
  • It has also been discovered that lesions to this part of the brain cause prolonged sleep or may produce coma. (wikipedia.org)
  • Especially during non-REM sleep, the brain uses significantly less energy during sleep than it does in waking. (wikipedia.org)
  • Since in quiet waking the brain is responsible for 20% of the body's energy use, this reduction has an independently noticeable impact on overall energy consumption. (wikipedia.org)
  • Key physiological measurements indicators of sleep include EEG of brain waves, electrooculography (EOG) of eye movements, electromyography (EMG) of skeletal muscle activity. (wikipedia.org)
  • REM sleep (also known as paradoxical sleep), a smaller portion of total sleep time and the main occasion for dreams (or nightmares), is associated with desynchronized and fast brain waves, eye movements, loss of muscle tone, and suspension of homeostasis. (wikipedia.org)
  • It was developed as an easy way to present the recordings of the brain wave activity from an electroencephalogram (EEG) during a period of sleep. (wikipedia.org)
  • How is sleep triggered and regulated by the brain and the nervous system? (wikipedia.org)
  • What happens in the brain during sleep? (wikipedia.org)
  • However, to translate these into a biological definition is difficult because no single pathway in the brain is responsible for the generation and regulation of sleep. (wikipedia.org)
  • periods
  • Bedwetting counts as a disorder once a child is old enough to stay dry, but continues either to average at least two wet nights a week with no long periods of dryness or to not sleep dry without being taken to the toilet by another person. (wikipedia.org)
  • regulation
  • Although the virus that caused this disorder was never identified, the psychiatrist and neurologist Constantin von Economo decided to study this disease and identified a key component in the sleep-wake regulation. (wikipedia.org)
  • Neuroscience
  • The findings provide strong evidence, says Stryker, UCSF professor and chair of the Department of Physiology and a member of the UCSF Keck Center for Integrative Neuroscience , that a function of sleep is to help consolidate the effects of waking experience on cortical plasticity, converting memory into more permanent and/or enhanced forms. (mojblog.hr)
  • The neuroscience of sleep is the study of the neuroscientific and physiological basis of the nature of sleep and its functions. (wikipedia.org)
  • The study of sleep from a neuroscience perspective grew to prominence with advances in technology and proliferation of neuroscience research from the second half of the twentieth century. (wikipedia.org)
  • neurons
  • While muscles are able to regenerate even in the absence of sleep, neurons are incapable of this ability. (wikipedia.org)
  • The sleep-promoting neurons are believed to project GABA type A and galanin, two known inhibitory neurotransmitters, to arousal-promoting neurons, such as histaminergic, serotonergic, orexinergic, noradrenergic, and cholinergic neurons (neurons mentioned above). (wikipedia.org)
  • citation needed
  • citation needed] Suggestions to improve the automated output of hypnograms to provide more reliable and accurate results include increasing the measures of sleep, for example by additionally measuring sleep with an electrocardiogram (ECG). (wikipedia.org)
  • citation needed] In order for dogs to cope with CCD with as little frustration as possible, it is important to make the transition into the progression of the disease easy and stress free. (wikipedia.org)
  • clinical
  • Zolpidem ingestion, automatisms, and sleep driving: a clinical and legal case series. (mdedge.com)
  • Diagnostic criteria for the disorder were adopted in the 2007 study of 50 case emphasized clinical features that distinguish TEA from transient global amnesia (TGA), with which TEA is often compared: A history of recurrent witnessed episodes of transient amnesia. (wikipedia.org)
  • Journal of Clinical Sleep Medicine. (wikipedia.org)