With age, stiff joints become a reality for many people. Years of use can take a toll on joints, muscles, and bones, but there are steps you can take to find relief. Why does joint stiffness occur?

Potential causes of knee stiffness include injury, arthritis, or arthrofibrosis. Certain types of arthritis are more common in older adults and people with previous knee injuries. People may be able ...

Muscle stiffness is when the muscles feel tight and difficult to move, particularly after resting. This can cause them to feel sore. Possible causes include a sprain or strain, an infection, and ...

Stiff and sore muscles can be a typical part of exercising. This can mean the muscles are working well and getting stronger. But, it may also be caused by other conditions requiring medical treatment.