A ces (micro stimulation, cranial electro stimulation) machine - tine but along similar lines to a tens machine not to electric shock therapy!! But they're expensive!!!!!!!!!! Like about $1590 gst!! Still they help pain, strss, anxiety, headaches, depression & insomnia - if it works for you - like everything nothing works for everyone.
Also accupuncture, 5htp (tryptophan), dhea, sam-e, vitamin b's, yoga & meditaion also cbt (cognitive behaviour therapy - run free/cheap by some hospitals/universities etc).