What does it mean when your whole body is stiff?

Muscle stiffness typically occurs after exercise, hard physical work, or lifting weights. You may also feel stiffness after periods of inactivity, like when you get out of bed in the morning or get out of a chair after sitting for a long time. Sprains and strains are the most common reasons for muscle stiffness.

What causes stiffness as you age?

As you age, joint movement becomes stiffer and less flexible because the amount of lubricating fluid inside your joints decreases and the cartilage becomes thinner. Ligaments also tend to shorten and lose some flexibility, making joints feel stiff.

What disease causes tight muscles?

Stiff-person syndrome (SPS) is a rare acquired neurological disorder characterized by progressive muscle stiffness (rigidity) and repeated episodes of painful muscle spasms. Muscular rigidity often fluctuates (i.e., grows worse and then improves) and usually occurs along with the muscle spasms.

Does fibromyalgia cause morning stiffness?

Studies show that most people diagnosed with fibromyalgia feel stiffness in the morning when they get up. The stiffness is extensive — affecting the muscles and joints of the back, arms, and legs. It makes them feel the need to “loosen up” after getting out of bed before beginning their usual activities.

What is the life expectancy of someone with myositis?

Life expectancy was normal at 81 years, but activities of daily life were clearly restricted. At follow-up, all patients were found to be using a wheelchair, seven of them (47\%) being completely wheelchair-bound. Disorders of the respiratory system were the most common cause of death.

What is polymyositis?

Polymyositis is a disease that causes muscles to become irritated and inflamed. The muscles eventually start to break down and become weak. The condition can affect muscles all over the body. This can make even simple movements difficult.

What is SPS syndrome?

Stiff Person Syndrome (SPS) is an autoimmune and neurological disorder with no known cause that can make the muscles in the torso and limbs alternate between rigidity and spasms.