Tuesday, May 27, 2014

REM sleep is evolutionarily recent phenomenon. Humans have the largest proportion of REM sleep duri

Une Nature | Olemiseilu's shin splints Blog
Uni's psychophysical state, based on the cortex shin splints of the brain and its spread to these structures, the overall braking. Une key features include (1) helping to restore the CNS, musculoskeletal and cognitive performance, shin splints (2) to promote the read-only memory traces fixation, and (3) partially activated käitumisprogramme you could basically need to go (and hence, these programs need to be "kept alive" ), but that's not actually enough or not used at all. During sleep, and ajuvalke produced growth hormones, nerve cells, as well as restored to the energy resources. An individual's need for sleep; the average person sleeps 5-9 hours a day. Need for sleep decreases with age. If the newborn sleeps 16 hours a day, then 50-90 years of age, people only 4-6 hours. Studies have found that short sleep, sleep deficits and poor sleep quality is associated with diabetes and metabolic syndrome, hüpoleptineemia (direct link to the brain galanin-opioid system), increased appetite and obesity. The fact that people can only effectively be aware narrowly brain temperature range, suggesting shin splints that our consciousness is dependent on thermal management, which in turn is dependent on sleeping. In experimental animals, the lack of sleep can lead to long-term death preceded by thermoregulatory dysfunction.
Sleeping time for most (80-85%) involves shin splints the so-called quiet or peaceful sleep, during which the bioelectric activity of the brain, cardiac, and slow breathing, muscle relaxation, the whole brain metabolism shin splints and blood flow reduction. As an exception, newborns sleep soundly, 50 percent and the percentage increases up to 3-5 years of age.
Direct genetic evidence indicating that the person's sleep is associated with a molecular clock. Circadian shin splints rhythm associated with the progress of genetics studies have led to the conclusion that both tsirkadiaanrütm shin splints is closely shin splints related to the metabolism of sleep when the controlled processes. Sleep stages
Sleep comprises two physiological quite different parts: REM - ie the rapid sleep (rapid eye movements, REM) sleep and non-REM (NREM). They are distinguished from each other by using polysomnography, which consists elektroentsefalogrammist (EEG), electro-okulograafiast (EOG) and electromyography (EMG).
Wakefulness eyes being called S0-phase (stage 0, zero phase). In most people it is characterized by a phase of high frequency electroencephalogram alfaaktiivsus 8 to 12.5 Hz and ärvelolekule characteristic of muscle tension. Stage 1 (NREM S1) represents the onset of sleep, which will occur during the theta waves (4-7 Hz), and slow eye movements (slow eye movements, SEM). NREM S2 phase is present in the EEG spindles (13-15 Hz) and K-complexes called to the high-voltage variations, which is seen as of major importance in response to stimuli. Background activity in this phase is composed of irregular theta waves. NREM sleep stages 3-4, or dominated shin splints ortounes delta waves (1.5 to 3 Hz). The difference between shin splints the phases of the waves in the density are mostly delta: S3-NREM phase are those 20 to 25%, and the number of NREM-S4 over 50% of the time phase.
During REM sleep, NREM S1 provides the Electro-phase corresponding EEG, and much more rapid eye movements. In addition, in this phase of rapid decrease shin splints in muscle tone and clear, except for breathing and silmaliigutajalihastes, irregular breathing, heart rate increases, blood pressure rises, and often stiffens the penis. Normally, the first is followed by a progressive adult sleep latency NREM sleep becomes more profound, followed by a first rather short, the REM phase. Subsequently, alternating layers of REM and NREM, about 90 minute intervals. shin splints Ortoune (NREM S3-4), the layers remain overnight at the beginning, on the other hand, REM phases is extended overnight.
REM sleep is evolutionarily recent phenomenon. Humans have the largest proportion of REM sleep during the third trimester of pregnancy and after the birth of the falls, shin splints where wakefulness and cognitive capacities are growing. A central factor in uinumnisel and NREM sleep occur during the impact on the L-tryptophan synthesis in the serotonin-raphe nuclei. In the regulation shin splints of REM sleep may be the main driver for the noradrenergic locus coeruleuse operation, and on the other hand, it is clearly observed that the activation of the kolinerglise neurotransmitter increases the amount of REM sleep.
REM sleep is active in the brain at the time of fore-ends, but also in the cerebellum, the brainstem and the spinal cord. Presumably cortico-thalamic and limbic system, shin splints which is the active wakefulness and REM sleep time, are directly responsible for the knowledgeable experience. Neurotransmitters, especially monoamines (serotonin 5-HT and norepinephrine NE), and to play a critical role in brain acetylcholine switching from one to another sleep phases. REM sleep occurs when aminergilise system activity shin splints is reduced sufficiently to allow the reticular system to get rid of their inhibitory effect.
Language acquisition, dreams of itself, the dreams debriefing and other cognitive skills grow gradually during childhood. Learning continues the whole life time, depending on the memory refresh and increase in volume. These facts are compatible with the persistence of adult REM sleep

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