I came across this article on MSNBC.com -
Music to your ears is music for your heart, too
Songs that make our hearts soar can make them stronger too, U.S. researchers reported on Tuesday.
They found that when people listened to their favorite music, their blood vessels dilated in much the same way as when laughing, or taking blood medications.
Miller’s team tested 10 healthy, non-smoking men and women, who were told to bring their favorite music.
They spent half an hour listening to the recordings and half an hour listening to music they said made them feel anxious while the researchers did ultrasound tests designed to show blood vessel function.
Compared to their normal baseline measurements, blood vessel diameter increased 26 percent on average when the volunteers heard their joyful music. Listening to music they disliked — in most cases in this group heavy metal — narrowed blood vessels by six percent(HAHA), Miller said.
Most of the volunteers chose country music but Miller said the style is not so important as what pleases each individual.
