How much cardio should I do while preserving my hard-earned muscle?
JT asked:
I’ve learned, through experience and lectures, that too much cardio causes your body to use your muscles as fuel. So now I need to know how much cardio to do while preserving my hard-earned muscle? Since I know cardio is important for a healthy heart.
I’m 18, male.
Please include sources if possible.
Filed Under: Cardio
eat before and your body will use that food for energy