Is he working full-time? Does he have any hobbies? Get him to find a hobby, something unrelated to anything bad or pressure, preferably something he can control/manipulate/build (objects only lol), or maybe a dog, but not a small hyper one, like a German-shephard/schnauzer mix or something, mix because better chance of survival usually, one of the ones more responsive to training so less roadblocks.
Have him start it and learn the hobby/project at any time EXCEPT when he feels like shit, then just use exercise or something, till he gets comfortable with the hobby, then it's ok to use it when feeling lame. Whatever happens, don't ONLY use it in bad times, if it's able to be made into a routine, that's a plus.
Basic component of the human psyche is needing something to retreat to in bad times. For me it's always been video games(or other stuff, but point remains the same), a place of solace when the world/pain seems like too much. Important not to rely on it, but definitely good to have safe/calm/comfortable places.
I'm not saying this as a way to forget the pain, as some people may think lol, but, more like a way of dealing with it in the moment, so that you can approach it from a calmer perspective later.
Edit: I actually read the posts this time, and saw photography, but honestly, that doesn't generally involve mind and body. (Maybe for people who like to edit it does, lol I've never been able to manage editing though, from personal experience, something that takes all or most of your concentration is best)
Oh wait, saw that photo might be work, in that case, why not have him build a photohut? (If you guys have the room)
