Mechanically, what is happening in your body to give you a stiff neck on one side after sleeping in a bad position?

Question

Every so often I will wake up like this. Why is it that when I turn or tilt my head to one side, I feel like I can’t move it and I experience a lot of pain? Is something getting in the way or is it just muscle that doesn’t want to move anymore?

In: Biology

Answer 1

And why did it last 3 days last time? I’m 29.