stiffness

Parkinson's disease, a neurological disorder best known for causing tremors, stiffness, slow movement and poor balance, also causes cognitive symptoms that can progress to Parkinson's dementia.

For example, they adjust the stiffness of their muscles when they walk on a more rigid surface.

MND is progressive and causes muscle weakness, stiffness, and paralysis that gets worse over time.

It enhances joint mobility and reduces joint stiffness.

About 1 in 150 people will experience more severe symptoms such as high fever, neck stiffness, stupor, disorientation, coma, tremors, convulsions, muscle weakness and paralysis, according to the World Health Organization.