Men have faster metabolisms because they have higher muscle mass. Having more muscle makes you burn more calories. This fact alone could be why you and your girlfriend differ so greatly health-wise. Not an expert, just my two cents. It's pretty common to see couples walking around the store where the man is much thinner than the woman.
Men have faster metabolisms because they have higher muscle mass. Having more muscle makes you burn more calories. This fact alone could be why you and your girlfriend differ so greatly health-wise. Not an expert, just my two cents. It's pretty common to see couples walking around the store where the man is much thinner than the woman.