According to the Chair of Music Education at the Institute of Education, Professor Graham Welch at the University of London, has studied developmental and medical aspects of singing for 30 years: "The health benefits of singing are both physical and psychological. Singing has physical benefits because it is an aerobic activity that increases oxygenation in the blood stream and exercises major muscle groups in the upper body, even when sitting. Singing has psychological benefits because of its normally positive effect in reducing stress levels through the action of the endocrine system which is linked to our sense of emotional well-being. Psychological benefits are also evident when people sing together as well as alone because of the increased sense of community, belonging and shared endeavour."
All for One choir also advocates the importance of singing to help keep your heart healthy. Choir members sang for their hearts when they performed a flash mob in Princes Quay Shopping Centre in Hull.
Helen Astrid, from The Helen Astrid Singing Academy in London says regular exercising of the vocal cords can even prolong life, according to research done by this leading vocal coach and singer . "It’s a great way to keep in shape because you are exercising your lungs and heart. Not only that, your body produces ‘feel good’ hormones called endorphins, which rush around your body when you sing. It’s exactly the same when you eat a bar of chocolate. The good news with singing is that you don’t gain any calories! Not only can it increase lung capacity, it improves posture, clears respiratory tubes and sinuses, and can increase mental alertness through greater oxygenation. It even tones the muscles of your stomach and back, that is if you’re singing correctly."
Singing even helps you live longer according to the findings of a joint Harvard and Yale study which showed that choral singing increased the life expectancy of the population of New Haven, Connecticut. The report concluded that this was because singing promoted both a healthy heart and an enhanced mental state. Another study at the University of California has reported higher levels of immune system proteins in the saliva of choristers after performing a complex Beethoven masterwork.