What Are Delta Brain Waves?
Delta Brain Waves are the brain’s slowest frequency range cycling at a rate of 1-4 times per second (e.g. 1 Hz – 4 Hz). Delta Brain Waves become active in your brain when you are in the deeper stages of sleep (e.g. stage 3 and stage 4). They are associated with being completely unconscious (i.e. you usually won’t know or remember anything while Delta Waves are dominant). Delta Brain Waves have been known to oscillate throughout all parts of the brain and are not usually synchronized. Of all brainwave ranges, the Delta Waves have the greatest amplitude and are responsible for the slowest form of mental processing.
Having access to the Delta Brainwave state not only implies that we are in a deep stage of sleep though. In some cases, people can learn to increase their delta activity. People with high amounts of Delta Waves have been found to have increased empathy (or understanding of others’ emotions). Other interesting effects have been documented as a side-effect of having Delta Brainwaves.