Frequently Asked Questions > Technical Questions > How does it work?
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From beat to beat, tiny changes in your heart rate reflect the activity of your stimulating and pacifying nerves. The StressEraser displays these tiny changes as waves on the screen. You can control these changes in heart rate with your breathing. The StressEraser guides you to slow down your breathing and then it gives you feedback on how your breathing is affecting your body. It gives you a point for each good relaxing breath you take. So the more points you get, the more relaxed you feel. By the end of a session you feel calm, focused, and relaxed.