What Are Alpha Brain Waves And Why Are They Important?

Your brain is a bustling hub of electrical activity. This is due to the fact that the cells in your brain, called neurons, use electricity to lớn communicate with each other.

When a group of neurons sends an electrical signal to lớn another group of neurons, we Gọi those brain waves. This is because a computer-generated electroencephalogram (EEG) chạy thử that detects & measures the electrical activity in your brain actually creates a picture that looks lượt thích a wavelike pattern.

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There are five basic types of brain waves that range from very slow khổng lồ very fast. Alpha waves fall in the middle of that series of waves. Your brain produces these waves when you’re awake but not really concentrating on any one thing.

In this article, we’ll take a closer look at what exactly alpha brain waves are, what function they serve sầu, and how they compare khổng lồ other brain waves.


What are alpha brain waves? 

When you first wake up in the morning, what’s the first thing you do? Perhaps you turn off your alarm clochồng and stretch. At this point, your brain might be relaxed.

So, while you’re warming up your muscles, your brain is producing altrộn waves. You’re not asking your brain to lớn process a lot of information or solve sầu any big problems. The waves simply indicate that you are in a state of wakeful rest.

You may also be able to lớn increase your brain’s production of alpha waves when you stop focusing or concentrating on a task, và simply try to lớn relax & unwind.

Interestingly, a 2009 study suggests that your brain may produce even more alpha waves in the posterior part of your brain when you meditate. Your brain isn’t totally at rest, but it’s not attempting to tackle anything big that requires concentration.


How are alpha waves different from other brain waves? 

Alpha brain waves are only one type of brain wave sầu. There are actually five common types of brain waves.

Brain waves are measured by frequency, which is cycles per second, or hertz (Hz), và they range from very slow lớn very fast. Alpha waves fit in the middle of the spectrum, between theta waves & beta waves.

Here’s the full spectrum of the five comtháng types of brain waves that you experience every day, from slowest lớn fastest:

Delta

When you’re deep in a state of dreamless sleep, your brain is producing delta waves, which are the slowest type of brainwave sầu. They measure between 0.5 and 4 Hz.

Theta

When you’re sleeping more lightly or when you’re extremely relaxed, your brain may produce more theta waves. Theta waves measure between 4 and 8 Hz.

Altrộn

As mentioned, altrộn waves fall in the middle of the brain wave spectrum.

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Your brain produces these waves when you’re not focusing too hard on anything in particular. Whatever you’re doing, you’re probably feeling relatively calm & relaxed. These waves measure between 8 và 12 Hz.

Beta

With these kinds of brain waves, you’re wide awake, alert, và focused. You’re going about your activities of daily living and making decisions. This is when your brain produces higher-speed beta waves, which measure between about 12 and 35 Hz.

Gamma

Your brain produces the speediest of brain waves, the gamma waves, when you’re actively involved in processing information and learning. You’re concentrating and solving problems, và these brainwaves, which tkết thúc to measure upward of 35 Hz, are the proof.


We can’t see brain waves, but we can measure them. A demo called an EEG can identify and measure the electrical activity in your brain.

With an EEG, a technician will place a series of small metal discs called electrodes all over your scalp. The discs convey the electrical activity of your neurons through wires to lớn a machine, which records and prints the patterns out on a screen or paper.

Your doctor may order an EEG to see if there are any unusual patterns in your brain waves, or problems that might suggest you have sầu epilepsy or another type of brain disorder.


You may be wondering why altrộn waves are so important. When your brain is producing these waves, it’s responding lớn activities lượt thích meditation & rest that can reduce your ức chế levels & help you feel calmer.

If you’re able to lớn produce altrộn brain waves, you’re probably able khổng lồ tap into a state that can help you get some rest and relaxation.

Boosting your altrộn waves might also increase your creativity levels. In a 2015 study, researchers found evidence that they could trigger a surge in creativity if they specifically focused on enhancing alpha waves.

The study was small­ — only 20 participants — but as a randomized trial, it could hold promise for the use of noninvasive brain stimulation khổng lồ rev up your brain’s production of alpha brain waves.


Your brain doesn’t stop producing one type of brain wave sầu just because you shift into a different state of consciousness or alertness.

It’s more that one type of brain wave will dominate at any given time, based on whether you’re awake or asleep, focused, or floating along. If for some reason your brain isn’t producing very many altrộn waves, it means that you’re not in a relaxed, meditative state of mind.

But there are times when your brain waves can become imbalanced.

Retìm kiếm indicates that some people who have sầu depression may have an imbalance of alpha waves, with more of them occurring in an area of the brain called the left frontal cortex.

A small 2019 study looked at a brain stimulation technique called transcranial alternating current stimulation (tACS) và found that it could increase altrộn brain waves & reduce depression symptoms in people affected by major depressive disorder (MDD).


You may actually be able lớn increase your alpha brain waves if you put your mind to it.

A năm trước study found that neurofeedback training helped some people with generalized anxiety disorder (GAD). Neurofeedback is a type of biofeedbaông xã where you respond in real time khổng lồ the electrical activity in your brain and try khổng lồ adjust it.

In this study, participants with GAD were divided into lớn a treatment group và a control group.

The treatment group that underwent neurofeedbaông xã training was able khổng lồ increase the amplitude of their alpha brain waves. These bigger alpha waves increased the participants’ sense of calm and reduced feelings of anxiety.

One caveat: This particular study also included theta waves in the neurofeedbaông xã training, which could have also played a role.

However, this study also suggests that it may be possible to lớn train your brain to lớn produce altrộn waves that can help you feel more relaxed.

A 2015 study also suggested that meditation & mindfulness training could achieve sầu these kinds of results.


There’s always some type of electrical activity going on in your brain, whether you’re aware of it or not.

At different times of the day, depending on what you’re doing, one type of your brain’s electrical waves will dominate. When your brain’s altrộn waves are dominating, you’re likely in a state of wakeful relaxation.

Relaxation techniques like mindfulness and meditation may help increase your alpha waves. This, in turn, may help you feel calmer, less anxious, &, according lớn some studies, may even boost your creativity levels.

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