The neck is a very complex highway, through which all kinds of information are led. When you feel things with your hands, you breathe oxygen, blood streams from your heart through your body, you eat, drink, all you can think of, everything passes your neck.
There only has to be a small crash (for example muscle irritation) on this complex highway and there could be traffic jams. Results are: a stressed neck, “wrong” breathing, headaches, tingling in the fingers etc.
It’s important to keep the roads up and clean and a good traffic controller is of big interest. Relaxation is the key in this!