Metabolism or metabolic rate is defined as the series of chemical reactions in a living organism that create and break down energy necessary for life. More simply, it's the rate at which your body expends energy or burns calories.
Our bodies burn calories in several ways .Through the energy required to keep the body functioning at rest, this is known as your basal metabolic rate (BMR). Your BMR is partly determined by the genes you inherit.
- Through everyday activities
- Through exercise
Metabolism is partly genetic and largely outside of one's control. Changing it is a matter of considerable debate. Some people are just lucky. They inherited genes that promote a faster metabolism and can eat more than others without gaining weight. Others are not so lucky and end up with a slow metabolism.