delta waves
type of low frequency, high amplitude brain wave characteristic of stage 3 and stage 4 sleep
Delta waves are a type of brain wave that occur during deep sleep, meditation, or other states of relaxation. These waves are typically seen on an electroencephalogram (EEG) and have a frequency of between 0.5 and 4 hertz.
Delta waves are associated with rest and restoration, and they are believed to play a crucial role in the restorative processes that occur during deep sleep. During this time, the body repairs and rejuvenates itself, and the brain clears away toxins and other waste products that have built up during the day.
In addition to sleep and relaxation, delta waves are also associated with certain types of brain disorders, including epilepsy and certain types of dementia. Researchers are still working to understand the role that these waves play in these conditions, but it is clear that they can provide important insights into brain function and health.
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