Throughout this week, wait for your body to ask for food. When you feel hungry, your body is ready with the enzymes for digestion. You will notice a small warmth build up in your stomach in preparation for the digestion.
Over time we have 'trained' our body to eat at timely intervals without respecting its ability to complete the digestion process. When you eat when you are not hungry, it takes longer and the food that you eat does not get digested properly.
Do not stay hungry for a long time though. As you become more aware, you will notice a marked improvement in your digestion and even start losing weight as metabolism improves.