A slow metabolism causes your body not to recognize hunger signals any longer. A great way to improve your metabolism, improve the ability to recognize hunger and make sure you meet your nutrient needs is to make yourself eat smaller, more frequent meals and snacks every few hours. In the beginning you will have to FORCE yourself to do it if you desire to make the change. After a few days you will begin to notice your body signals a need for food after a few hour because the body has become awaken. Here is an article that explains the benefits and gives you an idea about how to get started.
Eat More Often, Lose More Weight
The Benefits of Eating Several Small Meals Each Day www.sparkpeople.com/resource/nutrition_art