Came across this quite by accident while looking through various forums. It’s an interesting study but I’m not entirely sure if the correlation is necessarily a valid one. While it’s possible that depression and anxiety may indeed trigger conditions within the gut or skin to manifest, I’m more inclined to see it as a result of the behavioral shift than necessarily a chemical relationship.
Then again for myself I’ve suffered from a weak stomach and certainly acne all my life so I may not necessarily be the best person to be playing devils advocate here.