When I'm truly depressed fresh air does not make a noticeable difference nor does anything else. I don't avoid things which could make me feel better when depressed...I just find that the typical "this will make you feel better stuff" doesn't work for me. People say a walk in nature makes them feel better. When I'm depressed every step hurts....nature is just dirty and icky and makes me feel slimy. I'm exposed out in nature in a way that feels terrible.

My problem when depressed is that nothing helps, not that I avoid what will.