"At 22 days a single cell jolts to life. The first beat awakens nearby cells and incredibly they will all begin to beat in perfect unison. These beating cells divide and become your heart. This desire to beat in unison seemingly fuels our entire lives. Amazingly after six months at development the cerebral cortex is capable of supporting thought. Researchers have studied the sounds of newborns and discovered in their cries are patterns that reflects their mother’s speech. This means that even before we’re born we’re learning how to sing with another human being." (From the documentary "Alive Inside")