Singer G.Na was diagnosed with jaw joint problems.

In KBS 2TV "Vitamin" recently filmed, the guests' health was checked through various tests.

G.Na had already been warned for her serious underweight problems but this time, she also received a diagnosis about her jaw joint.

G.Na stated, "My teeth are not in good condition right now so I regularly go to my dentist but I didn't know there would be any problems with my jaw joint."

The doctor on the show said, "Your molars on each side are not good so you can't chew properly. So more strength is put on the jaw, making it unstable. You should get jaw correction as soon as possible and practice chewing on both sides."

Photo Credit: KBS 2TV