The majority of binges involve more than 1,000 calories consumed, with a quarter of binges surpassing 2,000 calories. Those suffering from binge eating disorders, unlike those suffering from other eating disorders, do not engage in compensatory activities aimed to "undo" the calories taken during a binge. Instead, they rely on repeated binges that can lead to obesity. A calorie is a measure of heat, and energy comes in different forms of heat - sound, light, radio frequency, electromagnetic, and chemical - as well as temperature. All energy sources have an effect on our body, whether it is heating up or cooling down. Energy from food affects the body in two ways: by providing nutrients and also by storing or releasing energy as heat or cold. The human body needs energy to function properly. Food is the source of this energy. Calories are measured in units called joules (J). One J is equal to one kilocalorie (kcal) or 4500 calories. The amount of energy in foods varies depending on how much protein, fat, or carbohydrate it contains. To estimate the number of calories in a food, you need to know its weight in grams, its volume in cubic centimeters (cc), and then multiply these numbers together. For example, one ounce of cheese has about 30 cc's of water inside it, so it would take three ounces of cheese to have a volume of 90 cc's. Then multiply 30 x 9 = 270 calories.