Our brains operate across a spectrum of five primary brainwave frequencies: delta, theta, alpha, beta, and gamma. Each frequency is associated with a specific mental state, from deep sleep to peak alertness. Brainwaves naturally shift based on our activities and environment, but there are ways to intentionally synchronize these waves to reach desired states, such as relaxation, meditation, or heightened focus. This process, known as brainwave entrainment, uses external stimuli like sound and music to harmonize brain frequencies. In this guide, we explore each brainwave state and how it influences our daily experiences.