This Headache Relief application uses two oscillators playing at 40 Hz and 40.5 Hz simultaneously. These frequencies are believed to help alleviate headache pain by promoting specific brainwave states. The combination of these frequencies creates a binaural beat effect of 0.5 Hz, which falls within the delta brainwave range, associated with deep relaxation and pain relief. The pulsing waves visualize the interference pattern between the two frequencies. Use the volume slider to adjust the intensity of the tones to your comfort level. Please use responsibly and consult with a healthcare professional for medical treatment of severe headaches.