I'm not sure if that's even possible to answer. Seeing has how there's no real information on what your uncle had or how he got better, and he's only one example, it's hard to then make the jump that it's mental. I HATE HATE when people say "he/she decided to get better and then they did".
Ya know why I hate it so bad, it's because that's what I used to say before I had a clue about
what what this disease can do to a person and how it impacts their life. I'll admit there's a fair amount of mental combat that has to go on with depression simply because doctors tend to brush it aside, and friends/family take the approach of "you don't look sick.. so what's your problem", and the lack of energy to simply socialize creates some isolation.... but I don't believe the onset of CFS or similar problems are created mentally.
The only mental part of it for me is trying to be as positive as possible and avoid depression. If I get sucked into depression (which I've done many times before) then that becomes a big hurdle to getting better - but overcoming it doesn't assure getting better. I think I rambed some.. and the above is just my opinion - I could be wrong.
11/01/2006 Status - likely have adrenal fatigue (been suffering for 5 years now):
Awaiting saliva test results.
6000mg/Vitamin C 800mg/Vitamin E 50mg/DHEA
1000mg/Vitamin B5 100mg/vitamin B6 200mg/SAMe
400mg/Magnesium 500mg/L-Tyrosine 100mg/CoQ10
450mg/Licorice Root ADRENergize