The temporomandibular joint (also called the jaw joint or TMJ) is one of the most frequently used joints in the human body. These all-too-important joints allow us to speak, chew, yawn, and laugh. So, when our jaws fall victim to injury or dysfunction, it can have devastating effects on our physical, mental, and social health. Luckily, calling attention to these overworked (and underappreciated!) joints can help you avoid painful TMJ disorders in the future. And ...