While some studies are interesting and even helpful (if long-term studies over decades), my own body is my own best study in the end for me... and I believe this to be independently true for others. We all have different genetics and different lifestyles, past histories, current life stessors, etc.
Pharmaceutical companies and government sponsored studies are money makers for those who do them. These are not always reliable, and often are 'jigged'. I know, I worked for a pharmaceutic company for years as a Grants Administator and I'm sorry that I did simply to survive financially.
We all need exercise and fresh air, IBS or not. We need to consume foods that are not contaminated and of good quality.
I give you the space to go with clinical studies, though I encourage people to eat what is proven to be healthy and works for them, regardless of what clinical studies show for a handful of others involved in some study. Many subjects don't even accurately report their symptoms... just interested in getting paid to participate.
IBS is a very person thing, and none of us are the exact same. The best information is right here on Heather's boards, and it's not all about clinical trials outside of ourselves and involves the sharing of our personal life experiences when it comes to eating foods that work for us (though not perhaps for all who have added diagnoses).
This is a support group and not a government clinical trial foundation. Heather's posts on what has been found through some trials do provide great and useful information, while some of these other trials absolutely do not. They often only actually serve to confuse some, and particularly 'newbies'. More stess and confusion is the last thing they need in their lives.
Perhaps it would be best if you run some things by Heather first and see if she wants to post them on the IBS info board.
Yes, lack of oxygen can cause yawning, and yes lack of oxygen can affect bowel function just like it can all bodily organs, including our brains. This is in part why exercise is recommended for IBS and lots of other medical conditions.
Senior female, IBS-D, presently stable thanks to Heather & Staff