The shape and differentiated state of many cell types are highly sensitive to the rigidity of the microenvironment. The physical mechanisms involved, however, are unknown. Here, we present a ...

PARKINSON'S disease symptoms develop slowly over a long time and could be caused by nerve damage in the brain. One of the more common warning signs of the condition is known as bradykinesia. What is ...

Nuchal rigidity refers to neck stiffness caused by serious medical conditions such as bacterial meningitis. You probably don’t give your neck the credit it deserves. It’s easy to take for granted that ...

Abdominal rigidity is stiffness of your stomach muscles that worsens when you touch, or someone else touches, your abdomen. It’s an involuntary response to prevent pain caused by pressure on your ...

Muscle rigidity refers to stiffness or tension in your muscles. This tends to happen when muscles contract for a long period of time, often due to stress. But certain medications and underlying ...