There are four types of brain wave that can occur while you’re thinking, sleeping, dreaming, concentrating and doing what you do – those brain waves are called Beta, Alpha, Theta & Delta.
1) Beta (14-40Hz) – The Waking Consciousness And Reasoning Wave
Beta brain waves are associated with normal waking consciousness and a heightened state of alertness, logic and critical reasoning.
While Beta brain waves are important for effective functioning throughout the day, they also can translate into stress, anxiety and restlessness.
The voice of Beta can be described as being that nagging little inner critic that gets louder the higher you go into range. Therefore, with a majority of adults operate at Beta; it’s little surprise that stress is today’s most common health problem.
2) Alpha (7.5-14Hz) – The Deep Relaxation Wave
Alpha brain waves are present in deep relaxation and usually when the eyes are closed, when you’re slipping into a lovely daydream or during light meditation. It is an optimal time to program the mind for success and it also heightens your imagination, visualization, memory, learning and concentration.
It is the gateway to your subconscious mind and lies at the base of your conscious awareness. The voice of Alpha is your intuition, which becomes clearer and more profound the closer you get to 7.5Hz.
3) Theta (4-7.5Hz) – The Light Meditation And Sleeping Wave
Theta brain waves are present during deep meditation and light sleep, including the all-important REM dream state. It is the realm of your subconsciousness and only experienced momentarily as you drift off to sleep from Alpha and wake from deep sleep (from Delta).
It is said that a sense of deep spiritual connection and unity with the universe can be experienced at Theta. Your mind’s most deep-seated programs are at Theta and it is where you experience vivid visualizations, great inspiration, profound creativity and exceptional insight. Unlike your other brain waves, the elusive voice of Theta is a silent voice.
It is at the Alpha-Theta border, from 7Hz to 8Hz, where the optimal range for visualization, mind programming and using the creative power of your mind begins. It’s the mental state which you consciously create your reality. At this frequency, you are conscious of your surroundings however your body is in deep relaxation.
4) Delta (0.5-4Hz) – The Deep Sleep Wave - Unconscious State
The Delta frequency is the slowest of the frequencies and is experienced in deep, dreamless sleep and in very deep, transcendental meditation where awareness is fully detached.
Delta is the realm of your unconscious mind, and the gateway to the universal mind and the collective unconscious, where information received is otherwise unavailable at the conscious level.
Among many things, deep sleep is important for the healing process – as it’s linked with deep healing and regeneration. Hence, not having enough deep sleep is detrimental to your health in more ways than one.
5) Gamma (above 40Hz) – The Insight Wave
This range is the most recently discovered and is the fastest frequency at above 40Hz. While little is known about this state of mind, initial research shows Gamma waves are associated with bursts of insight and high-level information processing.