Breathing and pain in the body

There is an absolutely direct relationship between the mechanic of breathing and the health of our posture.
Spoiled mechanics of breathing can lead to back / neck pain.
But first, a little reminder of basics. As we all taught in classrooms of anatomy, we all breath by the diaphragm.
The diaphragm is an organ that pumps air into our lungs. It attaches on the lower ribs and to the lumbar spine. Between these points
space is filled with dome shaped muscles. The diaphragm has two hemi-parts

The right part is bigger. Left – less.
When we inhale – the diaphragm drops to the bottom, creating a negative pressure in the lungs.
Exhale – the diaphragm rises up to squeeze out air from the lungs.
The ability of the diaphragm to retain the shape of dome indicates how well it is able to perform its function as the main
respiratory muscle. What’s most interesting is the function of the diaphragm (the ability to fall and rise) depends on its POSITION
in the chest.

So there are two important things to understand. (see the side view of the picture)
There is extension and there is flexion of our back.
During the inhalation, the spine is more extended, ribs goes up. During exhalation
the ribs should goes down.

Now imagine that as a result of a badly placed pelvis many of us stuck in a position of extension, or in the position of INHALE. By stucking in this position, our diaphragm
loses its FUNCTION because in such a position it stopes to have a dome-like shape,
but rather diagonal. This form of the diaphragm can not move fully up and down and pump air.
As a result, the body should develop compensatory breathing patterns: using the lower back and /
or the anterior part of the neck muscles to help bring air into the lungs.
These compensatory breathing patterns often lead to pain in the lower back, between the ribs,
, neck and head. In other words, the body will find compensation in any accessible part of the body.

Therefore, correct mechanic of breathing is very important to maintain healthy posture.