Brainwave entrainment is a technique that uses rhythmic stimuli, such as sound or light, to synchronize brainwave frequencies. This process can help individuals achieve specific mental states, such as relaxation, focus, or sleep. By exposing the brain to these rhythmic patterns, it can encourage the brainwaves to align with the frequency of the stimulus. Common methods of brainwave entrainment include binaural beats, isochronic tones, and visual flicker. These methods can be used in various settings, including meditation, therapy, and personal development, to enhance cognitive function and emotional well-being.