Add Yahoo as a preferred source to see more of our stories on Google. Many of us have felt a muscle in some part of our body suddenly and involuntarily tighten, causing a twitch or even severe cramp.

Add Yahoo as a preferred source to see more of our stories on Google. A muscle spasm, also known as a cramp, twitch or charley horse, is the sudden and involuntary forced contraction of a muscle.

Spasticity may be a term that’s new to you, but it’s a condition that affects more than 12 million people around the world. [8] It’s a complicated condition, but simply put, it’s extreme muscle ...

Spasticity causes chronic muscle tightness and stiffness that keep muscles contracted, reducing mobility and affecting both large movements like walking and fine motor skills like eating or writing.

Spasticity is a condition that affects your muscles, making them tight or stiff. This can impact your ability to perform daily activities, such as walking, eating, and talking. The condition may also ...

‌Hemifacial spasm is a disorder of the nerves and muscles that causes nonpainful involuntary twitching on one side of the face. Many people refer to hemifacial spasms as lip muscle spasms. Hemifacial ...

Causes of back spasms range from poor posture or minor muscle strains to underlying health conditions like osteoarthritis. Lifestyle changes and home remedies can help to relieve symptoms, along with ...

Stiff person syndrome (also known as SPS, Moersch-Woltman syndrome, and stiff man syndrome) is a very rare condition that can cause your muscles to become rigid or spasm. This is a progressive ...

Spastic diplegia cerebral palsy (SDCP) is a form of cerebral palsy that causes muscle stiffness and spasms in a person’s legs and, sometimes, arms. This is due to damage to the motor cortex of the ...

Esophageal spasms occur when the esophagus contracts abnormally, and they can be painful and uncomfortable. When they happen, the movement of food and drink toward the stomach is disrupted and less ...