4. Headaches
Headaches are another side effect of chronic chomping. Overusing and clenching jaw muscles can also trigger migraines.

5. Gas & Bloating
Sugar-free gum is better for your teeth but artificial sweeteners can wreak havoc on your digestive system. Excess gas is one particularly unpleasant result. On top of that we tend to swallow a lot of air as we chew which can cause some serious bloating.