So how can running be more effective?

　　Some go to the park, and some go to the woods beside the road to do various things. exercise activity or running. They believe that the air in the garden in the morning is fresh and dust-free, which is good for the body. healthy。

　　Running is the simplest and most effective way to keep fit, but do you know the best time to run?

　　A new explanation of the disadvantages of running in the early morning

　　Some people wake up early, get up early in the morning, and like to go outside for exercise at dawn. Some go to the park, and some go to the woods beside the road to do various exercise activities or run. They believe that the air in the garden in the morning is fresh and dust-free, which is good for their health.

　　However, getting up in the morning and exercising is good for elderly Or people with poor heart function are unfavorable. Medical statistics show that early morning is not only the peak time for heart attacks, but also the time when sudden death occurs the most, accounting for 61% of the incidence rate. 3%. Shioda, an associate professor of sports physiology at Yamaguchi University in Japan, pointed out that jogging in the early morning will put a lot of pressure on the heart, because the heart usually cannot adapt to complete exercise early in the morning. Yantian also said that jogging stimulates the human body to secrete a large amount of hormones and accelerates the heart rate. The results of his experiments on a number of college students showed that the secretion of adrenaline in people who jogged in the early morning was 2 to 4 times higher than the secretion of hormones stimulated by jogging in the afternoon or evening.

　　Evening jogging is best

　　A team of Japanese medical researchers led by Junichi Hayashi, assistant professor at Kyorin University in Tokyo, said jogging in the evening is better than jogging in the morning and afternoon. This is the conclusion they reached after conducting a jogging timing test on eight men aged 24 to 28 each from 7:30 in the morning to 5:30 in the evening.

　　They believe that jogging in the morning may cause blood clots and promote heart failure, while jogging in the evening may reduce the tendency of blood clots and prevent heart failure.

　　What are the benefits of running:

　　Long-distance running to prevent and treat arthritis

　　Running long distances may prevent arthritis. This is the conclusion reached by American scientist Sherlock after observing the knee joints of marathon runners with the help of magnetic resonance imaging equipment.

　　Sherlock found that athletes rarely develop cartilage tissue abnormalities and fluid accumulation even after completing long-distance runs of tens of kilometers. On the contrary, some recreational long-distance runners experienced these physiological changes in their knees after 30 minutes of long-distance running. It is speculated that "better biomechanics" and "the body's adaptability through long-term training" allow marathon runners to not only run long distances but also maintain healthy and strong knee joints.

　　Jogging strengthens bones

　　Experts from Chiba University School of Medicine in Japan believe that jogging can make bones "younger". The hospital compared the skeletal changes of 41 members of three jogging groups in Chiba Prefecture, aged 30 to 80, and 86 members who were not very active in sports. It was found that the bone density of the joggers' vertebrae, hip joints, leg bones and arm joints were all about 40% higher than those of the inactives. This bone density is close to that of a person in their twenties.

　　At once male In general, the longer the jogging distance in a week, the higher the bone density. Only those who persevere in jogging can achieve bone density equivalent to that of young people.

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