"His depression might improve if he dressed up."
His depression might improve if he dressed up.
There is a lot of psychology to recovering from a serious illness including mental aspects such as depression. I read where it is important to set reasonable daily tasks or yourself including making your bed up neatly after sleeping in it overnight.
This is important even if you are only able to get yourself to make it up just before going to bed in it again the following evening. Your mind and psyche recognize that you are trying and succeeding in stages.
"His depression might improve if he dressed up."