Chronic physical and mental fatigue
Brain - intestine axis
It is known that alterations to the flora and intestinal function (absorbing what is needed and not letting in what is damaging) alter the immune system and in a very striking way the functioning of the brain. It is currently thought that the underlying causes of altered intestinal permeability are related to our lifestyle, particularly antibiotic abuse, food, and chronic stress.
This alteration of the intestine called bowel permeability or leaky gut explains chronic physical and mental fatigue.