I have no data on this, but it can't help. Being stressed raises all sorts of bad stuff in our bodies and makes it hard to fight infections off. I know that I seem to get sick easier when I'm going through something stressful. Like right now I am going through testing for my liver and I can almost feel my sinus infection coming back that I had the beginning of January.
In my case, it could be the liver itself causing it, but I don't think so. My stress level is what is making this hard for me. I also can't tell if I have more fatigue from the liver or from my anxiety ABOUT it.