MUSCLE PHYSIOLOGY

Detailed explanation-1: -Muscle twitches are caused by our muscles tightening up ("contracting") involuntarily-in other words, when we’re not actually controlling them. Muscle twitches can happen for lots of reasons, like stress, too much caffeine, a poor diet, exercise, or as a side effect of some medicines.

Detailed explanation-2: -Anxiety can come with a range of physical symptoms, including muscle twitches. Muscle twitches are caused when your brain interprets anxiety as stress and sends signals to your body that trigger muscle spasms.

Detailed explanation-3: -Head twitching and anxiety Anxiety can cause muscle twitches and spasms, too. Typically, the anxiety causes stress and that stress can put tension on muscles and nerves. That can disrupt body signals which causes certain muscles to react with involuntary movement.

Detailed explanation-4: -"Fasciculations occur when innervation from the peripheral nervous system to the muscle is not working correctly and a muscle is triggered involuntarily, causing it to twitch, ‘’ says Dr. Ondo. “This is very common and these fasciculations usually go unnoticed, but in some cases, people do feel the muscle twitch."