Hemi-Sync® is a trademarked, state-of-the-art audio technology based on the natural functioning of the brain that encourages coherent brainwave activity. Our brains produce waves or patterns of electrical activity. Different patterns indicate different mental states, such as rest (occipital Alpha), deep sleep (central Delta), meditation (central and frontal Theta), physical activity (wide-spread Beta). Hemi-Sync's audio binaural beats influence these brainwave patterns and in concert with the other components of the Hemi-Sync process consequently affect states of consciousness.

The Hemi-Sync process is an auditory-guidance system developed and improved by The Monroe Institute over forty years of research. The coined, trademarked term, Hemi-Sync, signifies an entire process; a combination of multiplexed audio binaural beats and pink sound (or music), verbal suggestion (on some CDs), relaxation exercises, and guided imagery, all carefully crafted to engender desired mental states of consciousness. Hemi-Sync influences brainwave patterns and appears to transform states of consciousness.

The Hemi-Sync process does not employ the use of subliminal suggestions. Hemi-Sync auditory-guidance programs are designed for listening through stereo headphones or properly placed stereo speakers. The versatility of Hemi-Sync gives the basic technology an almost limitless range of applications for mental, physical and emotional well-being. The technology simply and effectively allows you to involve your own total capabilities and direct them as you choose. It can be compared to a powerful software program that facilitates extraordinary levels of performance and productivity, guided by the intention and desire of the listener.

Hemi-Sync is a state-of-the-art audio technology that enables us to mobilize and direct the power of our mind. Developed and refined by The Monroe Institute during 40 years of research, awarded U.S. government patents, and internationally recognized in the field of brain/mind investigation, this remarkable technology has benefited hundreds of thousands of people.

Hemi-Sync is based on the natural functioning of the brain. Our brains produce different patterns of electrical activity (brain waves) when we are in different states of consciousness. For example, Alpha brain waves predominate when we daydream, and Delta when we sleep. Very simply, Hemi-Sync encourages your brain to produce the brainwave activity necessary for what you want to accomplish. Therefore, a Hemi-Sync relaxation tape encourages the brain to produce brain waves that are naturally characteristic of a relaxed state; when you want an especially sharp focus of attention for peak performance, a concentration tape helps your brain achieve this goal.