yes, for some, walking or some type of exercise for non-ambulatory folks is like a super antidepressant, even if you're not prone to physical activity. The hardest part is just getting started, but then it's amazing, that afterwards, at least for a short while, you may feel better. This is one reason I try to exercise regularly, within my physical capabilities. Not just a physical health thing, but has always been vital for my mental health. The best!