Binaural Beats / Sound Therapy

Binaural beats use stereo headphones to entrain brainwaves into relaxed states, offering a cheaper alternative to TRE at just $30-200 for headphones. When the left ear receives 200 Hz and the right ear 210 Hz, the brain generates a 10 Hz alpha wave linked to calm alertness—a phenomenon confirmed by a 2025 Cedars-Sinai review. This review documented a 35% reduction in anxiety scores across multiple populations using alpha beats, outperforming the typical relaxation music in clinical settings. Theta frequencies (4-7 Hz) improve sleep onset by 25 minutes on average. While TRE targets physical tension, binaural beats excel for mental calm, producing measurable decreases in heart rate and cortisol. Free apps like Brain.fm and YouTube tracks make it accessible, though unlike TRE, it cannot be practiced without headphones for the beat effect. Singing bowls offer group alternatives with 20-30 minute sessions reducing pre-operative anxiety by 40% in palliative care studies.