This Exercise Can Cause a 7-Fold Surge of Heart Problems

 June 01 2012 |

By Dr. Mercola

Do you dread going to the gym for what feels like hours at a stretch? Or do you avoid working out altogether because you just don’t have the time? Then what I’m about to tell you should be music to your ears: sometimes when it comes to exercise, less is more.

It’s becoming increasingly clear that too much exercise, particularly long bouts of cardio, can cause more harm than good.

And while most Americans would be well served to exercise more, there’s probably no need to work out for more than 45 minutes or so at a time, as long as you exercise correctly and efficiently. In fact, one of the most effective exercises I know of takes just 20 minutes for the whole workout (I’ll explain more below)…

One of the best examples of the risks of over-exercising can be gleaned from marathon runners. Running a marathon is often seen as the epitome of fitness and the ultimate show of endurance. But it puts an extraordinary stress on your heart.

According to a study presented at the Canadian Cardiovascular Congress 2010 in Montreal, regular exercise reduces cardiovascular risk by a factor of two or three. But the extended vigorous exercise performed during a marathon raises cardiac risk by seven-fold! Long-distance running also leads to high levels of inflammation that may trigger cardiac eventsi and damage your heart long after the marathon is over.

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