Well exercise has a lot more benefits than just helping your weight loss. Just a few of those being:
- You're creating a healthy and active lifestyle that will continue once you've reached goal and are no longer counting calories to 1200
- It allows you to eat a little more and therefore makes keeping to 1200 calories NET easier
- It means that you can work off the higher calorie meals that you have when you go out or have a special occasion
- Boosts energy levels and helps you sleep better
- It builds muscle and tones changing your body shape
- Strengthens your bones
- Regular exercise makes you less likely to suffer from certain diseases such as heart disease and diabetes
- It improves your overall fitness
- Exercise releases endorphins and improves your mood
- Reduces stress levels
- Lowers your heart rate and blood pressure through improved circulation
- Increases chances of living longer
- improves posture
- Enhances your immune system so less likely to get ill
I could go on, but I think there's enough reasons there!