Brain waves are a type of oscillating electrical voltage in the brain cells, measuring very minute like a few millionths of a volt. There are five types of widely recognized brain waves. Brain waves tend to propagate along the Peri-neural system and blend with this regular and continuous current achieving homeostasis. This type of balancing force is the main element in all internal recovery processes and tissue repair. Positive attitude of a patient is indispensable to fast healing. The brain waves an individual generates, extend through the Peri-neural system and also to the body's injured part. This is a type of physiological justifications for the involvement of the placebo effect (Dr. Christine).
Delta waves are the slowest one out of all brain waves in individuals. They are commonly found in young children and infants, and are also associated with the deepest levels of restorative relaxation and, healing sleep. Delta is also prominently seen in various type of brain injuries, inability to think, learning problems and severe ADHD. If in any case, this wave is suppressed, it leads to poor sleep, inability to rejuvenate and revitalize the brain. A decent production of delta waves promotes the immune system, natural healing, helps us feel completely rejuvenated and deep sleep
When the brain is vigorously engaged or involved in mental activities, the brain creates beta waves. These beta waves have characteristic of low amplitude, and are faster compared to the other different brainwaves. The frequency chart or range of beta waves falls from 15 to 40 cycles per second. Beta waves are very much associated with a strongly engaged mind. A person in vibrant conversation or engagement would be in beta. For example, A debater or a person with great communication skills would be in high beta. A teacher, a talk show host or person making a speech would all be in beta when they are highly actively engaged in their work (Dr. Jacob).
The next brainwave category is alpha when we consider frequency sequence. Where stimulation is represented by beta, alpha represents non-arousal condition. Alpha brainwaves typically are slower, and much higher in amplitude. Their frequency range falls from 9 to 14 cycles/second. An individual who has completed a work and sits down to take a rest is generally in an alpha state of mind. A human being who takes time out to meditate or a person who takes a break and walks in the garden is typically in an alpha state.
The theta brainwaves are with greater amplitude and slower frequency. This type of frequency range falls from 5 to 8 cycles per second. A person who is on holiday and has taken time off from work and begins to daydream is generally in a theta brainwave state. A person who is driving a vehicle on a highway, and identifies not to recall the last few kilometers, is often in a theta state of mind. This type of driving as compared to a city road would differentiate a theta and a beta state on mind in order to perform the driving task safely. Individuals who run outdoors regularly are in a relaxation state that is slower than alpha, and when in theta they are got different solutions and ideas.This can also occur while shaving, in the shower or tub or even brushing your hair. It is a type of mental state where tasks become so automatic without engaging or involving the mind (Dr Muller).
Delta brainwaves are typically center around a range of 1.5 to 4 cycles/second and never go down to zero. But, deep dreamless sleep would take you to 2 to 3 cycles/second with down to the lowest frequency. When we want to sleep and go to bed for that, and read for a few minutes, we are likely to be in low beta. When we start putting the book down, turning off the lights and closing our eyes, our brainwaves fall from beta, to alpha, to theta and ultimately to delta when we fall asleep.