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Compared to a control group, the average blood vessel diameter in the arm increased 26 percent after the joyful music phase, while listening to music that caused anxiety narrowed blood vessels by six percent.
“I was impressed with the ; a number that the investigators determined was not statistically significant.
That physiological impact may also affect the activity of endorphins in the brain. “The emotional component may be an endorphin-mediated effect,” says Dr. Miller. “The active listening to music evokes such raw positive emotions likely in part due to the release of endorphins, part of that mind-heart connection that we highly significant differences both before and after listening to joyful music as well as between joyful and anxious music” said principal investigator Michael Miller, M.D., director of preventive cardiology at the University of Maryland Medical Center.During the 2005 phase of the study, a 19 percent increase in dilation was seens. The relaxation phase increased dilation by 11 percent on average