The greatest benefit of all is learning how to keep your stress at the optimum level so that it works for you (stimulation, challenge, purpose) rather than against you (stress overload or burnout / illness).
Autogenic Training is a remarkable life skill which is applicable in many situations.
There can be no promise as to outcome. Of course we know that AT is not a panacea for all ills. It is up to you to carry out your own treatment. Follow the links below for some examples (this is by no means an exhaustive list).