Advanced Brainwave Entrainment is used to synchronize your brainwaves to deeply relaxing low-frequency alpha and theta waves to help provide headache relief. Based on the #1 brainwave entrainment app.
And you might be curious as well how this app work to help you take away your headache. So here is the quotation from the Apple app store that you can study:
BrainWave Headache Relief synchronizes your brainwaves to a specific frequency by sending two different audible frequencies to each ear, which after being processed are perceived as a low frequency tone matching human brainwaves. Studies have shown various states of mind to be associated with these low frequencies, ranging from an alert and focused state to deep sleep.Anyway the BrainWave Headache Relief is a free app, if you try it, then you get nothing to lose financially. Interested? You can visit iTunes link here.