So I came across this guy who basically says even 30 min of cardio is not good...

heres what he said, or part anyways...

"I can go into great detail about this. But I will try to keep it as short as possible. The first thing you have to do is abandon the "myth" that you need to do at least 30 minutes of cardio in order to be effective.

Anything over 10 minutes is too long to work your heart and lungs. If you subject your body to long bouts of exertion, your heart and lungs actually "downsize" or shrink (I know...that seems the opposite of what you would think). This enables your heart to keep going at a high output for long periods. But your body wasn't designed for long-duration activity. It was designed for short bursts of intense exertion followed by rest. Think of our ancient ancestors - the hunters. They would run intensley for short periods of time to either hunt or run. Then they would rest.

Stressing your heart for long periods of time and forcing it to shrink causes you to lose vital reserve capacity. This is the extra pumping power your heart needs in times of crisis, such as having to get away fast if someone is chasing you, or if you have an emotional crisis such as being told someone you know has died. If your heart has lost its reserve capacity you could suffer a heart attack when a stressful situation arises.

This is why long distance runners suffer sudden cardiac death right in the middle of a run or marathon. Do you think these runners are healthy? Not a chance!"



Thoughts? MuscleScience, prove this idiot wrong plz...lol