520 Hertz is a frequency that has been used to help provide relief to people with headaches. 1.One thing is clear: A headache is the body's way of telling us we need to take a break. We need to completely relax for a while, to allow the brain to power-down and rejuvenate. 2.How does it work： 520 Hz frequency underneath the music takes you down into a state of deep relaxation. Your brain can switch off, relieve itself of tension, and rejuvenate your mind. This is a far healthier, natural cure than popping pills. 3.Suggestions: As soon as you notice you're starting to get a headache give this one a try to see if you can prevent it from getting worse.