A favorite song can give you a lift on a bad day but do certain melodies have healing properties? A growing number of hospitals are including music in treatments for conditions such as Parkinson's disease and cancer. 
Dr. Michael Miller, Director of the Center for Preventative Cardiology at the University of Maryland Medical Center presented data to the American Heart Association late last year. His study examined 10 healthy non-smoking volunteers both before and after they listed to music of their choosing. The results post-tunes - a 26 percent increase in the diameter of their upper arm blood vessels. Note that dilated blood vessels lead to increased blood flow. To further prove his point, his research subjects' blood vessels narrowed after suffering through music they hated. To read more about the healing properties of music, click here.
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