Telling a person that ‘stress’ causes their illness only stresses them out more. It’s a load of garbage.
I’ve had a chronic illness for years and “trying to avoid stress” never once helped my symptoms. Working out to expend energy, following the protocols and making sure to get enough sleep, did. I was at my healthiest when I lived in a poor area in NYC in a high stress environment with high stress work and running a band (managing, promoting, booking, writing, rehearsing) ..singing through my whisper. Every second of my life was taken up by work, band stuff, gym and diets, which I engaged on hyper drive in order to squeeze out any ounce of voice I had left. Sitting on my ass making time pass “less stressfully” always makes my health worse by comparison.