Let me explain this in plain English.
Your cervical spine is supposed to have a gentle C-curve.
That curve is what holds your 10 to 12 pound head balanced over your shoulders without strain.
For most modern adults, that curve has been flattened or even reversed. The cause is what physical
therapists call forward head posture. You may know it as "tech neck."
Here is the math that nobody tells you:
Every inch your head drifts forward of your shoulders adds about
10 pounds of perceived strain on the muscles at the back of your neck.
The average office worker holds their head 2 to 3 inches forward all day. That is
30 to 40 extra pounds of load on your neck for 10+ hours a day.
When you finally lie down at night, all of that built-up tension does not magically disappear. It
compresses further into the tissue. The vertebrae stay jammed together. The muscles stay contracted.
Two or three hours into sleep, those over-contracted muscles spasm around the compressed vertebrae. The
pressure spikes. A sharp pain shoots up the back of your neck or into your shoulder.
You jolt awake.
You toss for an hour trying to find a position that does not hurt. You finally drift back. Then it
happens again. And again. Two, three, four times a night.
You never reach the deep sleep that actually restores you. By morning you are exhausted AND still in
pain.