How Much Cardio Is Required to Improve Cardiovascular Health and Maintain Muscle Gains

There is a lot of debate in the gym about how cardio is responsible for eating up muscle mass, hence most bodybuilders run away from cardio exercises. But cardio exercises in itself are not bad, it is the amount of cardio you do that may or may not affect your muscle mass.
This video explains how much cardio you should do to reap the full benefit of cardiovascular activities while maintaining your muscle mass.