Nose or mouth?
Nasal breathing is healthier than mouth breathing for several reasons. Your lungs take oxygen from the air, and absorption of oxygen happens mostly on exhalation. Exhaling through the nose, which is smaller than the mouth, creates greater air pressure and therefore a slower exhalation.
A sweet film worth a watch
That Sugar Film is a very educational film that discusses the affects of over consuming sugar ad general, every-day foods that contain more sugar than you may think!