I wish I had a Bitcoin for each time someone has asked me if housework, yardwork, or walking the dog counts as exercise. First of all, any activity is better than sitting. Recent research suggests that sitting too much is associated with decreased fitness and increased mortality. So almost anything that causes us to get off the couch or push away from our desk can be beneficial. But are activities of daily living like vacuuming actually exercise?
When I was about 9 years old, someone in our small country church began selling vitamins. I don't know how long they stayed in the business before they gave up to move on to join a pyramid scheme where they sold super-concentrated laundry detergents, glass cleaner and toothpaste that had ground egg shells in it.