All living beings, big or small, are formed through the hard work of many different cells. To keep the body ready for any challenge, cells need to be dynamic. Often, this means the same types of ...

Medically reviewed by Brigid Dwyer, MD Key Takeaways Involuntary muscle movements happen when your body moves without you intending it, like with tics or tremors.  The causes of involuntary movements ...

If you have impaired muscle coordination or control, you might have a type of ataxia. This condition is rare, but it can make it difficult to maintain balance, speak, or move. “Ataxia” is the medical ...

Skeletal muscle is the type of muscle that controls movement. Problems with these muscles can be minor, life-threatening, or ongoing problems that make it hard to perform basic daily activities.

Visual feedback is just as important as a sense of body position when it comes to the involuntary reflexes that activate muscle movement, says a new study in the open-access journal eLife. The ...

Muscle contraction is the tightening, shortening, or lengthening of muscles when you do some activity. It can happen when you hold or pick up something, or when you stretch or exercise with weights.

A study in the Journal of Applied Physiology suggests quick bursts of moderate-intensity exercise can help your body use amino acids from your meals, which helps you build muscle. Researchers found ...