Voluntary muscles, also known as skeletal muscles, are muscles that can be consciously controlled, such as the muscles of your limbs, head, neck, and body. They are attached to bones and respond to ...
Minor muscle spasming can occur due to health conditions like nutrient deficiencies. More severe twitching can be a symptom of serious health conditions, including those affecting the nervous system.
Your diet, rest and even genetics play a big role in how your body responds to training and how quickly you'll see those muscle gains. You might feel tempted to push yourself harder to see faster ...