Pectus Excavatum Before and After Birth

Ergonomic hostile environment plus genetics for high mobility in the thorax is equal to high risk for chest wall deformities. This is my main theory in short. Is the ergonomic environment hostile before birth? The bigger the baby becomes during pregnancy the more ergonomic hostilely it will become. By the end it will become very compactly and if the thorax has high mobility it might be compressed and rotated because of the tight space (the upper back will become heavily bent). Is the ergonomic environment hostile after birth? We humans (in most parts of the world) don’t live along nature any more the same way we did at Stone Age. We have created a hostile environment in the modern society that is. What do we humans do? Beds and pillows are made as if all humans have the same physiology, chairs and other things we sits on are often very negatively constructed, and last but not least: Humanity in the modern world uses ordinary shoes (elevated heels) that completely can destroy the possibility to have a good posture. I am convinced that PE is all about genetics and ergonomics, bad ergonomics which makes the upper back to be bent (kyphosis) and therefore cause what I call “a free fall of the rib cage” (if the mobility in the thorax is high) which may lead to deformities in the chest wall as explained on my homepage and blog.