Читать книгу Carb Curfew: Cut the Carbs after 5pm and Lose Fat Fast! - Joanna Hall - Страница 18

As we have just discussed, our muscle mass starts to decrease as we get older and our metabolic rate tends to slow down, which means we burn fewer calories. Imagine you are 20 years old and you are sitting in a chair, and now imagine you are 50 years old sitting in a chair. Even though you are doing exactly the same everyday activity, if you have not kept up your muscle mass between the ages of 20 and 50 you will be burning less calories sitting still at the age of 50 than sitting still at the age of 20.