Maybe you go to the gym every day and watch what you eat, but still aren’t hitting your physique goals. It’s a common thing, and even dedicated gym rats hit plateaus from time to time. Switching up your routine frequently is a major key, but there’s more that could be going on if you’re at a standstill when it comes to your progress in the gym.

Personal trainer Pauline Nordin discusses 15 reasons why you may not be seeing the physique changes and fat loss results you want.