https://en.wikipedia.org/wiki/Sleep_paralysis
Related: Wiki: Diseases & Disorders • Sleep to readFibrodysplasia ossificans progressiva Fibrodysplasia ossificans progressiva (FOP), sometimes referred to as stone man syndrome, is an extremely rare disease of the connective tissue. A mutation of the body's repair mechanism causes fibrous tissue (including muscle, tendon, and ligament) to be ossified spontaneously or when damaged. In many cases, injuries can cause joints to become permanently frozen in place. Newborn - Sleep Patterns - Lucile Packard Children's Hospital What are the sleep patterns of a newborn? The average newborn sleeps much of the day and night, waking only for feedings every few hours. It is often hard for new parents to know how long and how often a newborn should sleep. Unfortunately, there is no set schedule at first and many newborns have their days and nights confused - they think they are supposed to be awake at night and sleep in the daytime. Generally, newborns sleep about eight to nine hours in the daytime and about eight hours at night.
Rapid eye movement sleep Rapid eye movement (REM) sleep is a stage of sleep characterized by the rapid and random movement of the eyes. Rapid eye movement sleep is classified into two categories: tonic and phasic.[1] It was identified and defined by Nathaniel Kleitman and his student Eugene Aserinsky in 1953. Criteria for REM sleep includes rapid eye movement, low muscle tone and a rapid, low-voltage EEG; these features are easily discernible in a polysomnogram,[2] the sleep study typically done for patients with suspected sleep disorders.[3] REM sleep typically occupies 20–25% of total sleep, about 90–120 minutes of a night's sleep. REM sleep normally occurs close to morning.[4] During a night of sleep, one usually experiences about four or five periods of REM sleep; they are quite short at the beginning of the night and longer toward the end. Many animals and some people tend to wake, or experience a period of very light sleep, for a short time immediately after a bout of REM.
Night terror Sleep disorder causing feelings of panic or dread Medical condition We ask you, humbly: don't scroll away. Kuru (disease) Kuru is an incurable degenerative neurological disorder endemic to tribal regions of Papua New Guinea. It is a type of transmissible spongiform encephalopathy, caused by a prion found in humans.[1] The term "kuru" derives from the Fore word "kuria/guria" ("to shake"),[2] a reference to the body tremors that are a classic symptom of the disease; it is also known among the Fore as the laughing sickness due to the pathologic bursts of laughter people would display when afflicted with the disease. What does your sleep position reveal about your personality? - Healthy Living on Shine These days, the way that I sleep simply says, "I am happy to be single and spending five to seven hours sprawled out in the center of my bed alone." At other points, my tightly squeezed eyes and curled-up body would have screamed, "I know the baby will wake up/someone will start snoring/the alarm will begin blaring as soon as I finally, finally, finally get to sleep." Years and years ago, the corpse-looking college student still in her clothes would have mumbled something like, "Finals. Boys.
Psychophysiology of Lucid Dreaming by Stephen LaBerge, Ph.D. Lucid Dreaming Physiologically Verified Although we are not usually explicitly aware of the fact that we are dreaming while we are dreaming, at times a remarkable exception occurs, and we become conscious enough to realize that we are dreaming. "Lucid" dreamers (the term derives from van Eeden, 1913) report being able to freely remember the circumstances of waking life, to think clearly, and to act deliberately upon reflection, all while experiencing a dream world that seems vividly real (Green, 1968; LaBerge, 1985; Gackenbach & LaBerge, 1988).
Form constant Geometric pattern recurringly observed during hypnagogia, hallucinations and altered states of consciousness. An example of a form constant. We ask you, humbly: don't scroll away. Capgras delusion The delusion most commonly occurs in patients diagnosed with paranoid schizophrenia, but has also been seen in patients suffering from brain injury[4] and dementia.[5] It presents often in individuals with a neurodegenerative disease, particularly at an older age.[6] It has also been reported as occurring in association with diabetes, hypothyroidism, and migraine attacks.[7] In one isolated case, the Capgras delusion was temporarily induced in a healthy subject by the drug ketamine.[8] It occurs more frequently in females, with a female:male ratio of approximately 3:2.[9] Signs and symptoms[edit] The following two case reports are examples of the Capgras delusion in a psychiatric setting: Diane was a 28-year-old single woman who was seen for an evaluation at a day hospital program in preparation for discharge from a psychiatric hospital. This was her third psychiatric admission in the past five years. Always shy and reclusive, Diane first became psychotic at age 23.
Older Adults Need Less Sleep How much sleep we need is largely a mystery, and sleep seems tougher to come by as we age. Many studies — often funded by the pharmaceutical industry — have suggested that we're all sleep-deprived zombies, risking our health for lack of shut-eye. But new research in the U.K. confirms previous indications that older people need less sleep.
Lucid dream A lucid dream is any dream in which one is aware that one is dreaming. In relation to this phenomenon, Greek philosopher Aristotle observed: "often when one is asleep, there is something in consciousness which declares that what then presents itself is but a dream".[1] One of the earliest references to personal experiences with lucid dreaming was by Marie-Jean-Léon, Marquis d'Hervey de Saint Denys.[2] Skeptics of the phenomenon suggest that it is not a state of sleep, but of brief wakefulness.[15][16] Others point out that there is no way to prove the truth of lucid dreaming other than to ask the dreamer.[17] Lucid dreaming has been researched scientifically, with participants performing pre-determined physical responses while experiencing a lucid dream.[18][19]
False awakening Vivid and convincing dream about awakening from sleep We ask you, humbly: don't scroll away. Hi reader, this Tuesday, for the 2nd time recently, we ask you to protect Wikipedia's independence. Thanks to the 2% of readers who donate, Wikipedia and the free knowledge movement are thriving. Autonomous sensory meridian response A video intended to trigger ASMR Autonomous sensory meridian response (ASMR) is a euphoric experience characterized by a static-like tingling sensation on the skin that typically begins on the scalp and moves down the back of the neck and upper spine, precipitating relaxation. Overview[edit] Definition[edit] Origins of the name[edit] The term 'autonomous sensory meridian response' (ASMR) was coined on 25 February 2010 by Jennifer Allen, a cybersecurity professional residing in New York[3] in the introduction to a Facebook Group she founded entitled the 'ASMR Group'.[4]