If you think your metabolism is only responsible for how much you weigh, you're selling it short. It actually encompasses the entire process of converting food into energy to keep you functioning—and it operates 24/7, even when you're sleeping.
For that reason, you can't exclusively blame a slow metabolism for weight gain. How much you eat and drink, how physically active you are, as well as what you're consuming are key factors. That said, according to the Mayo Clinic, some factors outside of your control (like genetic…