In a case that doctors have called "unbelievably rare," four sisters from West Virginia were diagnosed with the same brain and spinal condition known asChiari malformation.

An estimated 10 million Americans aged 50 and older have osteoporosis, a condition that causes bone loss and a higher risk of ...

Learn about surprising signs of sleep apnea, including depression, brain fog, impotence, high blood pressure, peeing at night, and teeth grinding.

Former Boston Celtics center Kristaps Porzingis missed a significant stretch of action during his final playoff run with the ...

In this gallery, you'll find some warning signs that shouldn't be ignored. Click to find out more.