According to a survey at the scientific meeting of the American Heart Association, people who run more than 20 miles (about 32 kilometers) per week on average do not live longer than those who run less than 20 miles per week. In fact, their average life expectancy is similar to that of people who don't run much.
In addition, endurance long-distance running such as marathon is more prone to arrhythmia, heart disease, stroke and other problems, and even lead to sudden death. Researchers in Germany and Sweden have followed 45,000 people for more than ten years, and found that people who exercise a lot are twice as likely to die of heart disease or stroke as ordinary people.
Running too much will make the heart produce too many platelets, block the coronary artery, block the blood vessels, produce blood reflux, cause some myocardial necrosis, and increase the possibility of heart disease. A study conducted by Mayo Clinic 20 12 in the United States shows that excessive exercise may damage the cardiovascular system, such as heart and vasodilation.
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Marathon is a long distance and consumes a lot of energy, so it is not suitable for daily exercise. Long-distance running needs to be gradual. Beginners had better run a short distance after fully warming up, and then gradually increase the distance after getting used to it.
If you want to participate in the marathon, you must first have a physical examination to understand your physical fitness and prevent sports accidents; You can try from 3000m, 5000m,10km, half marathon to full marathon in one step.
In addition, we should also pay attention to physical recovery after long-distance running, such as fatigue recovery, mental state, diet, sleep, weight and so on. If the pulse increases more than 10 beats/minute when you are quiet, a little exercise will cause a lot of symptoms such as sweating, fatigue or muscle aches, indicating that your body fatigue has not fully recovered and you should not take part in the marathon immediately.
People's Network-Marathon Not everyone can run too much exercise to hurt their health.