distance running, such as ultra-long-distance running.跑速different, different from the run, the impact on the human body are also different. Usually long-distance running training is usually early morning or late at night along the road or in the wild environment, this will be in line with air bath, you can cause the brain to rest. On young people, a good training environment change, so that their spirit can be adjusted to direct contact with nature, to learning and social activities in the more energetic, vibrant. Young people are jogging exercise on cardiovascular function, respiratory function and development of great help. Running and there are many types...