When you sing, musical vibrations move through you, altering your physical and emotional landscape.As the popularity of group singing grows, science has been hard at work trying to explain why it has such a calming yet energizing effect on people. What researchers are beginning to discover is that singing is like an infusion of the perfect tranquilizer, the kind that both soothes your nerves and elevates your spirits.
I found the above info and more at: http://ideas.time.com/2013/08/16/singing-changes-your-brain/

Sing while you dance! or Dance while you sing. or just dance. or just sing. I’ve been told it all works to change your brain.