Its all very confusing, but from our point of view, knowing what we know, is it likely that getting out and about and hiking, cycling and running, for example, might help some people in some way to cope with their problems. I personally believe so, but I equally believe that it's not a cure either. So many people, when faced with 'their issues' just sit around and descend into ever-decreasing mind circles, that doesn't help I'm sure. Better in my view to feel bad, sad and be sorry for oneself 'up a mountain' than to do it indoors! Physical illness like knees, for example, need to be tacked differently but equally, all sorts of long term medical problems can also drag one down psychologically. That I believe was the lesson I learned when diagnosed with cancer, if a treatment or a sugery is on offer, take it! In my case it worked, (it may not do so with everyone) so I've had five years of normal health again. And I can keep testing myself as well, thats one of the reasons I decided to run 100 runs in 100 days recently. It made me realise that I'm still alive both physically and mentally and its a real bonus to me knowing that I am still motivated to want to live. It also made me aware and confirmed my own view of myself that on balance I have an optomistic personality and prefer to look forward rather than dwell on how I felt yesterday or feel today. Tomorrow is always more important to me.