That migraine might not be in your head at all Discover how jaw tension could be the real reason behind your headaches.

In the jaw resistance exercise, you use your hand to push gently against your jaw while trying to open or close your mouth. This exercise builds muscle strength by offering resistance against natural ...

The company claims it tightens muscles for an improved smile. You can buy one online for about £100. Produced by Leon Siciliano More from Tech The product, which is called the Facial Fitness PAO ...