Marathon is a very popular new long-distance race in the world, with a distance of 26 kilometers and 385 yards, which is equivalent to 42.195 kilometers (or 42.193 kilometers in some opinions). There are three kinds of marathon: Full Marathon, Half Marathon and Quarter Marathon. The whole marathon is more popular. Generally speaking, it refers to the whole marathon. 3min's record is 2 hours and 3 minutes, and women's record is 2 hours and 17 minutes.

Marathon is a new event of long-distance race, with a distance of 42.195km (there is also a view that it is 42.193km, but all races use 42.195km). It usually takes four and a half hours to six hours for ordinary people to run a full marathon. Young people who run more than 1 kilometers at a speed of less than 6 minutes a day can generally finish the race in 4 hours to 4.5 hours, middle-aged and elderly people who often jog can also finish the race in 5 hours to 6 hours, and some old people, long-term marathon runners can also finish the race in 3.5 hours. I am a post-5 s, I have participated in the Shanghai Marathon for more than ten years, and I have been running for more than forty years.

At the beginning, there was no marathon in Shanghai in the 198s, only the annual 1-kilometer Shanghai Xiyingchun long-distance race. On January 1st every year, I ran from People's Square to Huxi Stadium. I remember my best record was 42 minutes and 43 minutes. It was not until the 199s that there was a marathon in Shanghai. Because of the increase in age and weight, it takes a longer time to finish the race. From 4 hours to 5 hours now, running and even 5.5 hours and a half (walking after 35 kilometers) marathon is a skiing sport. Ordinary people should never blindly try without long-term diligent and studious practice.

otherwise, it will cause great harm to the human body of the runner. It may cause heart disease, arrhythmia and other diseases, and even cause fainting and sudden death. It will continue to damage internal organs and lead to low immunity at the same time. The influence on musculoskeletal system is also seriously wrong, which will cause muscle strain, myofascitis and its joint problems. The distance as long as a marathon is probably only half an hour if you drive, but it's completely different if you run with flesh and blood. Therefore, you must be careful before trying to run a marathon.