i also believe the mind and body are connected somehow with our immune systems too. say something important is going to happen or we have to do something important, our minds can give us anxiety and that would cause our immune system to go out of wack. then we would get anxiety attacks, ulcers etc...my dad was supposed to get his leggs broken for arthritis treatment and the day of waiting 6 months for it, he found out he had shingles that day. i thought it was psychosomatic because i think the anxiety caused his immune system to bring on the shingles virus which is already in our immune systems.just an example but it does make some kind of sence.