World Sjögren’s Day is observed annually on July 23 to raise awareness about Sjögren's syndrome. The day also promotes ...

Dry eye and mouth are cardinal symptoms of the disease, but fatigue, muscle aches and sometimes mild cognitive impairment (“brain fog”) are other common symptoms.

Oral melanoma Skin cancers in the mouth can be infrequent but can be a devastating diagnosis when found. Sometimes a small patch on the gums, inner cheek or roof of mouth can occur.

The eyes and protruding mouth of stingrays, like the one pictured at the World Aquarium in St. Louis, help them swim with greater thrust and accelerated cruising, according to a new study.