While we consider our metabolism as how rapidly we metabolize meals or burn energy, it’s a lot greater than that. In reality, while you hear somebody saying they’ve a “fast” or “slow” metabolism, they’re actually referring to their metabolic fee.
An particular person’s basal metabolic fee (BMR) is the variety of energy a person wants to hold out primary physiological capabilities (once more: respiration, digestion, blood circulation, and many others.). Their resting metabolic fee (RMR), aka resting vitality expenditure (REE), is the precise variety of energy they burn at relaxation. An individual with a “fast” metabolism has a better REE than somebody with a “slow” metabolism.
Now, earlier than you get discouraged, it’s vital to level out that your metabolic fee is influenced by a variety of components—a few of that are mounted (e.g., genetics, organic intercourse, age) and lots of of which will be optimized (e.g., mitochondrial well being, muscle mass, adiposity, insulin sensitivity, thyroid hormone well being, diet, timing of meals, stress ranges, sleep well being, bodily exercise, and extra).