The sternocleidomastoid (SCM) is the large muscle in your neck that you can see when you turn your head to the side. It is a common cause of pain due to “tech neck.” This muscle is also prone to injury
A spasm or cramp is an involuntary contraction of a voluntary/skeletal muscle. Spasms and cramps are essentially the same thing, though often massage therapists and clients will describe a prolonged cramp as “being in spasm.” What Causes a Spasm or