The higher it is, the more calories you burn and the easier it is to lose weight and keep it off. Having a high metabolism can also give you energy and make you feel better.

What are the signs of a high metabolism?

Signs of a fast metabolism include increased calorie burning, difficulty gaining weight, increased breathing, insomnia and frequent sweating. The term fast or slow metabolism is often used depending on the speed of a person's basal metabolic rate (BMR).

Why do I have a high metabolism?

Body size, age, gender and genes all play a role in the speed of your metabolism. Muscle cells require more energy to maintain than fat cells, so people with more muscle than fat tend to have a faster metabolism. As we get older, we tend to gain fat and lose muscle.