The endomorph body type usually has a higher than desirable percentage of body fat distributed at and below the waist. You may have always had trouble maintaining your weight. When you gain weight, it is in all areas of your body. Endomorph's have softer, rounder, physiques and tend to be obese.
You must overcome a metabolism is slower than the other body types to see improvements. A high amount of cardio and weight training activity will increase your metabolism and burn fat.