I'm pretty sure that its either illegal or prescription medication
Answer:
Muscle contraction is the activation of tension-generating sites within muscle fibers. In physiology, muscle contraction does not necessarily mean muscle shortening because muscle tension can be produced without changes in muscle length, such as by holding a heavy book or a dumbbell at the same position. The termination of muscle contraction is followed by muscle relaxation, which is a return of the muscle fibers to their low tension-generating state.
Explanation:
You want to be able to treat the disorder before it gets too bad and irreparable. If you figure out whats going on and what food or substances are causing the issue, you can avoid those and take other precaustions as well.
