As people age, the shape of their face begins to change. As fat builds up in the neck, the skin begins to sag and the jaw muscles begin to shrink. This may cause your jawline to become less defined.

Jessica was a writer on the Wellness team, with a focus on health technology, eye care, nutrition and finding new approaches to chronic health problems. Expertise Public health, new wellness ...

The temporomandibular joint (TMJ) is the hinge-like bone that connects your jaw and your skull. You can feel it moving by pressing your index fingers to your cheeks and opening and closing your mouth.

U.K. researchers are warning the dental community about a "face and neck toning" device called Jawzrsize, cautioning that it may produce negative effects, in a letter published on February 26 in the ...

How to stop lockjaw depends on its cause. Lockjaw, also known as trismus, is not always caused by tetanus. It can also result from trauma, temporomandibular joint (TMJ) disorders, oral infections, or ...