Calories are a necessary part of our existence because they
provide energy to our cells to perform their functions. One cannot
survive without calories because it serves as the body's fuel in order
to perform its work. Without calories, our body will not be able to
move.However, too many calories are unwanted because if it is not used up, they are stored and converted to body fats. Body fats are necessary to provide insulation and protection to the body but too much fat causes acute diseases. Thus, we must only take in a certain amount of calories and store enough body fats for us to be healthy. If you think you have too much body fats, then it is time to cut down the extra calories. The question: "How to lose calories?" is then the main concern to maintain a physically fit body.