Diet, being the key factor to healthy living was also one of my bigger issues and not knowing much about nutrition and healthy food was demoralizing. Luckily, Nutrition Guide is included with P90X and it is staged as choice of two types of healthy diets.
So I have heard this concept over and over about “staying in the zone” especially during cardio workouts. What is my zone? The “what in the hell are you making me do and my heart is now pounding in my head making me feel like my ears about about the burs” zone? So I wanted to find out what is my optimum heart rate so I can compare it to how I feel during workouts.