If you implement these few instructions in your life then you will be fit and healthy:
1. Have Breakfast
2. Drink Plenty of Water
3. Take an Exercise Break
4. Go Offline and sleep on time
5. Learn Something New(New skills help keep your brain healthy)
6. Don't Smoke
7. Train Your Muscles
Sounds like a solid plan, maybe a few points like:
8. Don't drink more alcohol than a glass of wine.
9. Don't drink more than 2-3 coffees a day, too much coffein is not good for you.
10. Go outside everyday and if you can walk or take the bike instead of using a car.