Quite a few people had also requested this on other videos, so why not! Hopefully this video provided enough information for those that wanted to know!
And the reason a lot of reasons for acquired hernias happen because of either increased pressure in the abdomen, or from very high negative pressure in the chest. Breathing happens because of a balance of different pressures in the chest and abdomen, and when those pressure get out of balance, things in the abdomen can shift upwards through the hiatus.
