Singing helps to reduce blood pressure
Doctors report through Science Daily that singing reduced the blood pressure of a 76-year-old woman who had experienced severe preoperative hypertension prior to total knee replacement surgery for osteoarthritis. While the patient was unresponsive to aggressive pharmacologic interventions, the woman’s blood pressure dropped dramatically when she sang several religious and operatic songs.
Even more reasons to take up those singing lessons!!!

can we only imagine the noise if we all started singing prior to our medical operations!!! haha nice bit of info