Losing touch with your body's natural hunger and satisfaction signals can lead to chronic overeating — and unhealthy extra kilograms and pounds that can lead to diabetes, heart disease and other serious conditions. When Swedish researchers compared the eating habits and weight of 4,359 people, they found a consistent pattern: Overweight people ate more snacks than normal-weight people. And if you snack on junk foods, you're also flooding your body with trans fats and saturated fats, excess sodium and sugars and refined carbohydrates.