When I put the Sleep Bracelet on the first time and laying down before 10 minutes I felt a groundedness. My mind was more still. Then I involuntarily took 2 big breaths. It was like my body was taking in much needed oxygen to reset itself and calm the nervous system. Deep breathing increases the supple of oxygen to your brain and stimulates the parasympathetic nervous system which promotes a state of calmness. It also releases endorphins, which are the feel good hormones and naturally relieves pain. When you breath deeply your heart rate slows down and your blood pressure goes down.