If you suffer from upset stomach, insomnia, and anxiety, it may be because you've been breathing wrong. Psychologist and author of "Breathe", Dr. Belisa Vranich explains how we came to learn to breathe like this, and why breathing correctly could help us all.

VIDEO: There's a dangerous side-effect of over-the-counter nasal sprays

VIDEO: NYU Otologist Erich Voigt explains the best way to tell if you have bad breath.