As far as I know, stress is not considered a cause for bc. But it’s not all that good for your general health - it depends of course on what kind of stress. Some stresses can be invigorating, a bit of an adrenalin rush. Others are not, they wear you down and erode your energy and emotional
resilience. I found taking out a gym membership helped - I’d paid so I should use it! After a while, it became a habit, a good one. It’s amazing how much time you can find to do the things you want to do. So
much harder to find time for things you don’t want to do. If you can find some form of exercise you enjoy - walking, dancing, running, Zumba, whatever - you’re more likely to stick with it. Best wishes.