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Brainwave Entrainment And Isochronic Tones: How Do they Work?

If you’ve landed on this site, you’re presumably curious about using brainwave entrainment and isochronic tones, perhaps to improve your meditation sessions, explore altered states of consciousness, or solve some problem or other. While you don’t have to know how these technologies work to benefit from them, they’re fascinating all the same, so if you’re not sure exactly what brainwave entrainment or isochronic tones are, then read on.

Measuring Brainwaves

When brain cells (neurons) communicate with each other, they collectively generate a large amount of electrical activity, which can be measured by means of medical equipment such as an electroencephalogram (EEG) machine. This activity is cyclic in nature, taking the form of waves of activity – hence the name ‘brainwaves’.

Like other types of waveforms, brainwaves are measured in terms of Hertz (Hz), or cycles per second. Brainwave activity is classified into various ‘bands’ on the basis of frequency, and these bands are associated with different physical and mental states. The main brain wave activity bands are as follows:

  • Delta brainwaves (< 4 Hz) – Delta waves occur naturally in deep, dreamless sleep. They are associated with the regeneration of the physical body. Experienced meditators may also produce delta waves when in very deep trance states.
  • Theta brainwaves (4 – 7 Hz) – Theta waves are linked with deep trance meditation and hypnotic states, as well as light sleep.
  • Alpha brainwaves (8 – 12 Hz) – Alpha waves are produced in states of light relaxation and meditation, daydreaming, hypnosis and visualisation. Just closing your eyes will naturally cause your brain to go into the alpha state.
  • Beta brainwaves (12 – 30 Hz) – Beta waves are linked with normal waking consciousness, when you’re in a state of alertness and focus.
  • Gamma brainwaves (> 30Hz) – The existence of gamma waves is disputed by some researchers, but where recognised they are linked with states of transcendental consciousness.

Note that the boundaries between these bands aren’t agreed on by all researchers, and are approximate, rather than absolute.

What Is Brainwave Entrainment?

Many people wish to be able to voluntarily enter the mental states associated with different brainwave frequencies, and this ability can be learned. However, some find it difficult to learn the necessary control of their mental focus, or simply don’t have the time to develop it. This is where brain wave entrainment can come in useful.

Researchers have found that by using brainwave entrainment, brainwaves of the desired frequency can be induced at will – and so can the mental states associated with them. Brainwave entrainment takes advantage of the so called ‘frequency following response’, which is the brain’s natural tendency to synchronise with the frequency of a periodic external stimulus, such as sound or light pulses, if the rate and pattern of those stimuli is close to those of the brain’s own rhythms. If you listen to a sound recording which contains frequencies that correspond to those of the alpha state, for example, your brain will begin to produce predominantly alpha waves as you listen (it may take some practice to sustain the state).

Although brainwave entrainment has only been studied scientifically since the 20th century, it isn’t a new phenomenon, and has been used by cultures throughout the world for centuries (in the form of shamanistic drum beats, for example).

Types of Brainwave Entrainment Technology

Brainwave synchronisation is most often achieved using sound, light, or a combination of the two. Other types of stimuli can be used too; basically anything that pulses in an appropriate rhythmic manner has the potential to be used for entrainment. However, aural methods are the most convenient and economical for most people, so we will focus on those here. There are three main types of sound-based brainwave stimulation: binaural beats, monaural beats and isochronic tones. These work slightly differently, but all produce good results.

Binaural Beats

Binaural beats are the oldest and most thoroughly studied type of aural entrainment method, and are probably still the most popular. They were originally discovered in 1839, by Heinrich Wilhelm Dove, researched in a scattered manner throughout the 20th century, and first seriously examined in the 1970s, by Gerald Oster.

Binaural beats are sound pulses that originate inside the brain, when two pure sounds of different frequencies are played through headphones (one sound to each ear). These two tones must be below 1000 – 1500Hz, and the frequency difference between them around 30 Hz or less. For example, you might listen to a 300Hz tone in your left ear, and a 308 Hz tone in the right. The brain will process the sounds and an 8Hz pulse will be perceived within the head (that is, the pulse will repeat eight times per second). The brain will then entrain to this pulse, producing brain waves of a similar predominant frequency. Sometimes the two tones are masked to some extent by using pink noise, ambient music, running water or similar sounds.

Although binaural beats are so widely used as to be almost synonymous with brainwave entrainment in many people’s minds, they’re not usually the most effective method.

Monaural Beats

The difference between binaural and monaural beats is that with monaurals, the two sine waves are mixed together before entering the ear. In this way a pulse is produced with the frequency of the difference between the two tones, but unlike with binaural beats, the brain itself does not have to produce that third sound. Many people believe that this process is easier on the brain than binaurals, and more effective, since the monaural waveform is more clearly defined, and thus has a stronger entrainment effect.

Monaural beats may be played with or without headphones, although it is best to use headphones if possible, to reduce distractions.

Isochronic Tones

Isochronic tones are the third and newest entrainment method, and are the most effective in most cases. They consist of a single tone of a specific frequency that plays at clearly defined intervals. These intervals are varied, depending on the effect required. They also differ from monaural beats in that monaurals consist of a single pulsed sine wave, whereas isochronics feature completely separate pulses with a very clear interval between each one. These discrete pulses have been found to be extremely effective in entraining the brain to the desired frequency.

Like monaural beats, isochronic tone recordings don’t require the use of headphones, although again, they’re recommended if possible.

The following video illustrates the difference in the waveforms of these technologies – you can see how much more clearly defined the isochronic tones are in comparison to the others:

Which Are Best – Binaurals, Monaurals Or Isochronics?

In most instances, isochronic tones are the most effective method, because the ‘spaced out’ nature of the pulses has the strongest entrainment effect – when listening to an isochronic tone recording, your brain should synchronise with it more quickly and deeply than with binaurals or monaurals. Unlike binaural beats, isochronic tones can be used without headphones, which can be more convenient and comfortable for many people. They can also be used to synchronise each hemisphere of the brain individually, which is required for some purposes.

Isochronic tones aren’t always best however; some people find the more ‘jagged’ noise they produce to be distracting or irritating (especially at the deeper theta and delta frequencies), and they can’t be hidden in pink noise and other sounds in the same way that binaural beats can, because the tones must be audible to be effective.

Personally, I prefer isochronic tones for most brainwave entrainment purposes, followed by monaural beats, then binaural beats. However, all three methods do work, and I recommend experimenting with all three to find what suits you best.

Uses Of Brainwave Entrainment

Brainwave synchronisation technologies have many uses. They are popular with those who wish to explore altered states of consciousness such as lucid dreaming or astral projection, or who wish to develop extra sensory abilities like telepathy or remote viewing. They are also used to normalise mental functioning, such as in the treatment of depression, anxiety or sleep problems, or to enhance mental performance and creativity. Some also use brainwave entrainment to boost their physical health or healing abilities.

The articles on this site explore many of these uses in more depth, and if you want to start trying out isochronic tones or other types of brainwave recordings yourself, check out The Unexplainable Store. I personally like using their alpha and theta meditation recordings regularly, and am experimenting with some of the other tracks. They’re all fully guaranteed, and you can get some free samples too.

Meditation For Anxiety Relief – Brainwave Entrainment For Fast & Better Results

Anxiety is a life-sapping, debilitating disorder. When you spend so many of your waking moments worrying about anything and everything, it’s easy to lose sight of the simple fact that life should be enjoyable. And it’s not just the worry – there are the associated physical symptoms like headaches, heart palpitations and that horrible churning ‘butterflies in the stomach’ feeling that just never seems to go away.

With all the stresses and strains of modern life, it’s hardly surprising that so many people have issues with chronic anxiety. Many people turn to anti-anxiety medications in an effort to find relief. While these can be effective in the short term, they’re not a great idea for long term use, since they can cause side effects and may become addictive. Also, they don’t really get to the root of the problem. Instead, a lot of people are now looking for a natural solution to anxiety, and one which is very effective is meditation.

Meditation And Anxiety Relief

Meditation is the age-old practice of quieting the mind and going within. It helps to create a sense of peace and calm, and when practiced regularly, it can help with a variety of issues, including anxious feelings.

There are many different ways to meditate. Some people aim to completely silence the mind, whereas others allow their thoughts to take their natural course, but maintain a sense of detachment, and don’t get caught up in them. You can also calm the mind by maintaining a single-pointed focus, for example on a candle flame, your breathing or a mantra.

In most cases, people who meditate set aside a regular period of time for practice, perhaps starting with 5 or 10 minutes at a time, and then increasing it to 20 minutes or more. It’s important to meditate in a quiet place where you won’t be disturbed, and to wear comfortable clothing. Although the results may not be obvious at first, over time, consistent meditation will normally provide relief for anxiety sufferers, as well as having positive effects on other aspects of your life, such as your energy levels and general sense of well-being.

Does Meditation Always Work?

There’s no one ‘right’ way to meditate, so you really need to experiment to find the best way for you. What you’ll probably find though is that it can take quite a while for meditation to be effective. This is because most people find it difficult to quiet their mind enough to achieve a sense of calm and inner peace. This isn’t surprising, since most have never tried it before, and are battling against a lifetime of undisciplined thought habits. This problem can be even more acute for anxiety sufferers, who may find that worrisome thoughts keep creeping in.

So meditation can be effective (eventually), but the path to learning to meditate effectively can be a long and frustrating one. But what if there was a way to ‘short cut’ the process, and learn to achieve a relaxed state with ease, boosting the power of your meditation sessions? Well, there is, thanks to brainwave entrainment technology.

How Brainwave Entrainment Can Help

In case you’re not familiar with the process, brainwave entrainment works by exposing the brain to stimuli, such as sound or light pulses, of particular frequencies. The brain has a natural tendency to match or ‘entrain’ to these frequencies. Different states of consciousness are associated with specific frequencies – for example, the theta brainwave band (4 – 8 Hz) is experienced in meditative trance states. So by using brainwave synchronisation, you can get your brain into a mental state where brainwaves of the desired frequency range dominate – without the need to spend years learning to master difficult mind control techniques.

Audio-based brainwave entrainment is the most popular and economical method. It uses three main methods: binaural beats, monaural beats and isochronic tones. These work a bit differently, but all are effective, and involve listening to a recording with sounds of certain frequencies (depending on the brain state you want to achieve). Although binaural beats are the most well-known method, many people find that isochronic tones are the most effective, as they tend to produce more rapid synchronisation, and unlike binaurals, they don’t require the use of headphones. [Learn more about binaural beats, monaural beats and isochronic tones]

Brainwave Synchonization And Anxiety Reduction

Brainwave entrainment recordings for anxiety reduction feature frequencies that may make it easier relax deeply and to access your subconscious mind and release the limiting thought patterns that create the anxiety attacks in the first place. Now you don’t have to be hampered by an inability to focus or calm your mind, since the recording helps your brain to settle into a meditative state naturally.

Imagine waking up in the morning, and instead of feeling those familiar old worries flooding into your head, you instead find yourself looking forward to another day filled with joy and peace. Brainwave entrainment for anxiety reduction can help to make this a reality.

If you decide to take advantage of the power of isochronic tones or other brainwave entrainment methods, just be sure that you’re using a high quality recording that you enjoy listening to. I personally really like the meditation recordings from The Unexplainable Store, and find them very relaxing (especially the theta track). The site also has an ‘anxiety aid’ recording, although I haven’t used this myself. However all products are fully guaranteed, so you can try with confidence, you can also download some free samples to see if you like them first.

Exploring The World Of Lucid Dreaming

Are you interested in exploring the world of lucid dreaming? Well, you are in luck. I am about to help you experience your first, but definitely not last lucid dream.

Trust me, they are unbelievable fun and excitement, and you will not want to miss out on this. Keep reading to learn what you can do to help these special dreams occur!

Inducing Lucid Dreams - What Exactly Are Lucid Dreams Anyways?

You may be wondering, "What is a lucid dream anyways?"

To put it simply, a lucid dream is just like a normal dream, except you are 100% aware of what is going on, and you KNOW that you are dreaming.

During a Lucid dream, you are able to consciously go anywhere that you would like, without the normal limitations that you would experience.

So you could literally dream yourself to the moon, and be fully conscious the entire time!

Want to learn how? Click here to fully indulge yourself into the wonderful world of lucid dreaming!

It really is FUN exploring the world of Lucid Dreaming. Don't miss out, learn how to induce lucid dreams TODAY!

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Tips For Inducing Lucid Dreams 

Are you ready for your first Lucid Dream? Well you better be, because I am about to walk you through a few of the steps that I follow whenever I want to go exploring the world of lucid dreaming!


When preparing for your lucid dreams, the idea is to get as calm as possible before you drift off to sleep.

  1. Each night as I am laying down for rest, I find it that dreams come easier if I play a soft, soothing CD on a low volume. This should be a very calming CD, such as animal sounds, or nature sounds.
  2. Now, you are going to need to put yourself into a scenario. You will do a sort of "hypnosis" on yourself by imagining that you are on an adventure. So pretty much, walk yourself through your own personal adventure, such as exploring the bottom of the ocean or climbing through a cave, until you eventually drift into a deep sleep.

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My Lucid Dreaming Experience 

Well, to be honest I had never even heard of Lucid dreaming until almost two months ago. At first it seemed WAY too good to be true, so I was hesitant to even try it. But, fortunately my friend had bought a product to teach him how to do this, and after seeing his success with it, I decided to purchase it as well.

Well, I was disappointed the first two nights when I couldn't get a real lucid dream going, but I reread the instructions and discovered what I was doing wrong, and on the third night I experienced my first real Lucid dream!

It was amazing! The dream started out with me simply walking down my street at my house. Honestly, I didn't even know I was dreaming until I was halfway down the street! But in this dream, nothing truly amazing happened, but I was still amazed with the fact that I did it!

But, by the second week, I was flying to the moon! I could literally do anything that I wanted in my dreams!

For any of you debating on whether to give it a try, you need to understand that you may not get it the first night, or even the second night, but trust me, you will get it and you will love it!

Don't Waste Your Life Sleeping!Lets say that you sleep on average 8 hours per night. That is 1/3 of your life, all spent sleeping! Well, now you can actually enjoy that time spent through lucid dreaming!

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Have you experienced a lucid dream? Please share it with us...