Our brain is primarily composed of immeasurable nerve cells called neurons. These neurons send messages from one part of the body to the other part through electrical impulses. Researchers have used EEG (electroencephalogram) and sensors to study these electrical signals, also called brainwaves, and have discovered that the brain produces 5 different brainwaves (delta, theta, alpha, beta, and gamma) during different activities.
brainwaves ranges from 0.5Hz to 100Hz – An Overview
The frequency of these 5 brainwaves ranges from 0.5Hz to 100Hz. Theta waves (4-8Hz) are produced while you are in REM sleep, dreaming and have reduced consciousness. These brainwaves are produced when you feel fully relaxed before going to a deep sleep state. Delta waves (0.5-4Hz) are linked with deep sleep, brain energy restoration, and healing through deep sleep. Other waves are associated with many different activities such as creativity, excitement, learning, etc.