Research has long shown the benefits of exercise, specifically running which is suppose to be good for heart health. New studies however indicate that too much running may have the opposite effect.Dr. Mercola says that running more than 20 miles a week, or excessive marathon running may actually be a cause of cardiac arrest.
Research data published in the a recent edition of Missouri Medicine, indicates that 50 men who ran at the least, one marathon annually, for 25 years had higher levels of coronary-artery plaque than sedentary men, in a controlled group.
A study published in the British Medical Journal this year compared the carotid arteries of 42 individuals, who qualified for the Boston Marathon, with their spouses, who were much-less active. The researchers hypothesized that the runners would have “a more favourable atherosclerotic risk profile,” That hypothesis however, turned out to be wrong.
Limited research implies, that heart related issues, may arise not in spite of extreme-endurance exercise but rather because of it. This has resulted in a theory, by some cardiologistst, which is that beyond a certain point, exercise stops preventing and begins to be the cause of heart disease.
This theory may have played out n the life of Boston marathon director, Dave McGillvray, who was recently diagnosed with coronary artery disease. McGillivaary, runs the marathon course each year once his duties are finished. As soon as the finalrunner has crossed the finish line, Dave McGillivray goes to the start line in Hopkinton, and proceeds to run the 26.2-mile race himself.
McGillivray, age 59 also runs one mile for each year he has lived, every year on his birthday. He has also completed ironman-distance triathlons, multiple marathons, and even once ran across America, to raise money for charity.
He told the Boston Herald, that he was never sick, ate what he desired and assumed running would make everything balance out, ad until recently he had no idea anything was wrong He now admits that being physically fit and being in good health are not always the same thing.
This caused me to reflect on a relative who was a champion, award winning body builder, in excellent physical condition, yet died suddenly of a massive heart attack at age 60. Obviously his physical fitness, was no indicator of his health. I wonder if his excessive weight lifting and training, may have played a part in his sudden death. Alas we will never know for sure.
The bottom line to all of this, is that our bodies were not made or extreme anything. Exercise, weight training, running and all other activities should be enjoyed so that the health benefits will manifest. We should not indulge and do them to the point we do it to death.