Swimming: summer best exercise

<p> Although there is a saying that goes "summer practising" encouragement in summer persist activists are still rare, swimming is an exception. </ p> Summer is like swimming and swim to look forward to the season, even if it does not .even willing to swim in the swimming pool in two more. <p> It's not just because the water of the thermal capacity is 16 times that of the air, this mean that if your body heat in the air needs to circulate, 16 minutes in .the water just 1 minute. </ p> In other words, swimming is also a good summer. <p> Swimming more advantage is that with modern lifestyle changes, sitting in the Office, but also to work with computers for a long time, .make the cervical and lumbar spinal problems, a lot of rehabilitation, and orthopedic experts were of the opinion that a swim is the best prevention of cervical spinal diseases of movement. </ p> <p> Because swimming, since water buoyancy effect, the .body of the spine from the original upright can become level, greatly reduces the burden of the spine, thereby effectively reducing the neck, the pressure inside the disc. </ p> And water flow on the spine, muscles and skin plays a certain role ."massage", which is why many athletes bone injuries or lumbar muscle strain's choice of Spa. <! - AFP Control Code / Caption. left vertical banner --><!-- AFP Control Code End/No.--> < .p> Now comes H1N1 flu epidemic, swimming can enhance the body immunity, thus preventing influenza infection. </ p> <p> However, Beijing Normal University Associate Professor Zhao JI sport college students that only medium intensity of swimming will improve body immunity, .medium strength was sporting centre rate is the maximum heart rate of 70%, or see yourself swimming the day after the reaction of the body. </ p> <p> If you are tired, mental sluggishness, appetite is poor is the manifestation of .the exercise is too large, it will reduce the organism immunity. </ p> <p align="right"> (Practice editing: Li Jing) </ p>.