The music is playing on the car radio, and we’re humming along, chiming in every once in awhile when we know the words.  It’s fun, and it makes us feel good.  Humming is like chanting, where sound waves evoke positive responses in both the body and spirit.  But did you know that this simple practice is actually good for the sinuses?  It’s true!  Studies show that humming helps to improve the out-put of nitric oxide, which is an indication of effective sinus function.  Breathe easy, humming is a healthy habit!