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There are lots of ways to relax. Some ways are designed to relax your mind and some to relax your body. But because of the way the mind and body are connected, many relaxation methods work on both the mind and the body.
The ability to hear music depends on a series of steps that convert sound waves coming into the ear into electrical signals in the brain5. As the brain interprets these sounds, a cascade of physical effects are triggered within the body. Many of these effects either directly promote sleep or reduce issues that interfere with sleep.
Parents know from experience that lullabies and gentle rhythms can help babies to fall asleep. Science supports this common observation, showing that children of all ages, from premature infants1 to elementary school children2, sleep better after listening to soothing melodies.