Your doctor tells you that you and your twin sister have the same BMR you live independent lives and do your own thing, so how can that be? Which factor is likely the reason

1 answer

The most likely factor that can explain why you and your twin sister have the same basal metabolic rate (BMR) despite living independent lives and doing your own thing is genetics. BMR, which is the amount of calories your body needs to maintain basic functions at rest, is influenced by various factors including age, body composition, and genetics.

Since you and your twin sister share the same genes, it is no surprise that your bodies have similar metabolic rates. Genes play a significant role in determining the speed of your metabolism and can influence factors such as your muscle mass, hormone levels, and overall energy expenditure.

Therefore, even if you and your twin sister lead different lifestyles, your underlying genetic makeup contributes to your similar BMRs.