The brain is made up of billions of nerve cells called neurons that use electric pulses to communicate with each other. Depending on what you’re thinking, feeling or doing, these pulses create brainwaves of different frequencies.
To better understand your brain, you should know that it can switch between five different frequencies, depending on what you’re doing. The five brainwave frequencies can be measured in hertz, or cycles per second. These waves are called delta, theta, alpha, beta and gamma.