Have you ever felt a tight or heavy sensation in your chest? While your first instinct may be that it is a heart attack, it ...

This overuse of your jaw muscles can lead to pain, tiredness, or trouble moving your jaw when you wake up in the morning.

"Overuse or injury to the muscles in the chest wall ... intense chest pain that radiates to the left side, arm, neck, or jaw," Dr. Cutler says. You might also get chest pressure, tightness ...

Vigorous exercise also increases the production of lactic acid, the same substance that causes "muscle burn" during and after exercise ... The mechanical stress placed on the temporomandibular joint ...

There are several types of TMD, all of which relate to jaw bones and muscles. Roughly 10% to 15% of adults have some form of ...

If you wake up with sore teeth or tight jaw muscles, you might be grinding your teeth at night. Here, dentists and oral pain ...

Restricted jaw movement and in severe cases can cause trismus (difficulty opening mouth) Headache, neck and shoulder pain ...

If you wake up with a headache, sore jaw muscles or achy teeth, you might be grinding your teeth at night or clenching your jaw. The condition — bruxism — is surprisingly common, experts say.

The famous Arecibo Observatory in Puerto Rico collapsed due to a combination of decayed zinc in the telescope’s cable sockets and previous damage from Hurricane Maria, according to a report ...

Kathleen Culliton is Raw Story's assistant managing editor. She's been covering local and national news for more than a decade for outlets that include the New York Post, Al Jazeera, DNAinfo New ...