How many calories should a person have?

A calorie is a measure of heat required to raise the temperature of water one degree.The amount of calories needed for almost every person is different. So, there are many factors that can determine a persons calories. One of them are your metabolic rate or your metabolism. Most with higher metabolisms will burn calories more quickly but your metabolisms can be already decided for you by your genetics. Another can be your activities, higher activity levels usually mean the greater need for caloric intake. The more you exercise, the more calories you need to fuel that exercise. Age is a big factor too. As you get older, your metabolic rate tends to decrease, reducing calories needs. Gender is another one. Males tend to have a higher metabolism and larger bodies increasing caloric need. Weight and body composition is another factor. The bigger your body, usually the more calories you need to fuel it.