How the Brain Activity Is Linked to Sleep ?
Question by Sharp Shooter: How the brain activity is linked to sleep ?
plz explain the mechanism . Thanks .
Best answer:
Answer by SpringElf
During stage 1, which is light sleep, we drift in and out of sleep and can be awakened easily. Our eyes move very slowly and muscle activity slows. People awakened from stage 1 sleep often remember fragmented visual images. Many also experience sudden muscle contractions called hypnic myoclonia, often preceded by a sensation of starting to fall. These sudden movements are similar to the “jump” we make when startled. When we enter stage 2 sleep, our eye movements stop and our brain waves (fluctuations of electrical activity that can be measured by electrodes) become slower, with occasional bursts of rapid waves called sleep spindles. In stage 3, extremely slow brain waves called delta waves begin to appear, interspersed with smaller, faster waves. By stage 4, the brain produces delta waves almost exclusively. It is very difficult to wake someone during stages 3 and 4, which together are called deep sleep. There is no eye movement or muscle activity. People awakened during deep sleep do not adjust immediately and often feel groggy and disoriented for several minutes after they wake up. Some children experience bedwetting, night terrors, or sleepwalking during deep sleep.
Add your own answer in the comments!
ClosingTreatment.3gp – Personal video about Washington State Legislators proposing to close Adult In-patient drug and alcohol treatment centers.
Photo: Contributed – @Gina_SVH twitter
Filed under: drug treatment centers in washington state
The Interstate 5 bridge over the Skagit River collapsed Thursday evening, injuring an unknown number of people. Both the northbound and southbound portions of the bridge dropped into the river sometime before 7 p.m., according to Washington State …
Read more on Castanet.net
Lawsuit says former Johnson City cancer doctor responsible for patient death
Filed under: drug treatment centers in washington state
A former Johnson City cancer doctor who pleaded guilty in a case involving “misbranded” drugs was named Friday in a civil case alleging responsibility for a patient's death. Dr. William Kincaid, one of three physicians in the partnership that was …
Read more on Johnson City Press (subscription)
Slaughter and DeLauro Highlight New Report Detailing Antibiotic Resistance in …
Filed under: drug treatment centers in washington state
WASHINGTON – Today, Congresswomen Louise M. Slaughter (D-NY) and Rosa L. DeLauro (D-CT) highlighted a report from the Center for Science in the Public Interest (CSPI) that detailed more than 55 foodborne illness outbreaks since 1973, and said the …
Read more on Food Safety Magazine