Where those headaches actually start
When the upper cervical vertebrae stay compressed, the tension travels up into your head. Gently separating them eases that pressure — and often the headache you assumed was something else entirely.
The root of the whole problem
The three air chambers inflate and lift your head a few millimeters. That small amount of extra space between vertebrae is what unloads the discs and helps your neck find its natural curve again.
The shoulders that never come down
If your neck isn't holding you up properly, your traps pick up the slack all day long. Take the cervical load off and your shoulders finally drop — that knot between neck and back starts letting go.
Tingling that runs down your arm
A compressed nerve in your neck is often felt much further down. Opening up that space reduces the pressure on those nerve roots, and the pins-and-needles usually settle.