Muscle twitches fall into two main types. There’s myoclonus, where a whole muscle or group of muscles twitch or spasm. Then ...

If your fitness goal is to up the ante on endurance, pack more power into your sprint, or supercharge your strength gains in the gym, it’s worth exploring – what are the different muscle fiber types?

If your doctor has suggested that you may have a myopathy, you likely have a lot of questions. There are many types of myopathies with different causes and outlooks. Myopathies are a class of diseases ...