I’m 26 years old, 5′7″, 182 (as of today), 28.5 BMI. I go to the gym about 4-5 times a week. Rather than alternate cardio and weights, I do both every day focusing on certain muscle groups at a time allowing other to recup. I’m trying to burn more fat while build muscle, but with all of this confusion as to what heart-rate groups (i.e., fat burning vs cardio) is better, I’m not sure which one to focus on.