Excessive physical exercise, especially without adequate rest, can damage the human body in various ways. In severe cases, it ...

According to the Cleveland Clinic, “Stiff person syndrome is a rare, chronic condition that causes muscle stiffness and painful muscle spasms. The severity of symptoms varies from person to person.

Rett syndrome is a devastating rare genetic childhood disorder primarily affecting girls. Merely 1 out of 10,000 girls are ...

They do care, but when care turns to control and support becomes surveillance, even the most loyal friendships start to fray.

Can research into a rare, accelerated aging disease and "zombie cells" teach us something about the normal aging process?

Asperger's syndrome is a part of the autism spectrum and people no longer consider it an independent diagnosis. Learn more about this condition.

Adam DeVine is sharing an update on his health after he was misdiagnosed with Stiff Person Syndrome (SPS). The Righteous ...