What is a Brainwave state?

The brain is made up of billions of neurons communicating in a sea of electrical impulses. This electrical activity moves like pulses or waves across the brain creating a resonant frequency, measured in cycles per second or hertz (Hz), called a Brainwave state. It must be noted that at any one time the brain produces many frequencies but collectively a dominant one can be measured. The brain is highly dynamic and during the day and night we pass through various states being dependent on our physical and mental activities.

Science recognizes five main Brainwave states (Gamma not shown in chart)

Gamma (40+Hz) associated with a lift in mood, happiness, intelligence and greater feelings of love for oneself and others.
Beta (14+Hz) – everyday working conscious state – as you read these lines you are most likely in the Beta state.
Alpha (7-14Hz) – a calm relaxed state. Occurs while daydreaming and during light meditation but can also occur when one is focused and mentally alert. Has links to dreaming during sleep, simple problem solving and a positive outlook on life.
Theta (4-7Hz) – for deep meditation, relaxation and exploring psychic phenomena. Associated with creative insight, flashes of intuition, advanced problem solving, altered states, better sleep and boosting immune system function.
Delta (1-4Hz) – associated with deep sleep and body healing but also linked to benefits of deep meditative states such as profound visions, bliss and altered states.

View this related audio by James Wild at Quiet Earth

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