To teach your metabolism to function optimally without too much effort, all you have to do is move around more. If you work from home, take regular breaks throughout your day to do house chores or fix your meals, or tend to your kids. If you work at an office, take regular breaks to move around during the day. Walk longer distances when you run errands from the parking lot to the door, and take the stairs whenever you can. Even just taking small breaks can add up. While it won’t replace intense exercise, being constantly active during the day can improve your metabolism.