Summer extreme sports competitions and performances are: the main BMX, skateboarding, rock climbing, rock climbing, skateboarding, mountain air speed gliding, water skiing, white water kayaking, motor boats, surfing, jet ski, bungee jumping, Block hurdles, 100 meters, 200 meters and so on. Because extreme sports have their own nature, environment, ecology and health, and challenge themselves (active, courageous, joy and excitement) and nature, extreme sports in Europe and the United States can be popular, magic is used to describe. For snowboarding in the United States alone, there are currently 1.1 million water-skiing enthusiasts and 4.5 million water-skiing enthusiasts in the US Exclaimed skateboarding in the 1960s has been banned by state governments Skateboarding, and in the "underground engineering" it was not until the mid-1980s that the skateboarding project was rediscovered, giving "city fantasy" its momentum and wide-ranging influence to many savvy manufacturers who "print money." Skateboarding stars Tony Hawker and Andy McDonald are undoubtedly the same idol group as Jordan (basketball) and Pete Sampras (tennis) in the eyes of many young people Exercise occasionally. Many people take advantage of the double day to do intensive fitness to make up for lack of exercise. Fitness experts point out that being too lazy to exercise hurts your body, while exercising occasionally hurts your body. At weekends, most of the exercisers are sitting in the office five days a week, basically without exercise, and the body has actually adapted to it. The weekend suddenly takes a lot of time to concentrate on exercise, but breaks the already formed physiology and the body balance, the result is worse than not the motion. Therefore, it is effective to exercise 3 to 5 times a week. Gym at the weekend due to time limit, the family usually doesn't like the weekend have plenty of time, but can choose the suitable project, moderate exercise in dinner, so, exercise can improve physical fitness, the effect of improving health. With a little practice, now you may train their brain to make off the busyness and go to sleep quickly each night. First, make sure that the sleep area is comfortable, is just not too hot or too cold, and contains minimal or no distractions. Lie down on the bed, face up, with arms either along your sides or comfortably put on the torso. Cover up which has a blanket if required. Next, close your eyes and imagine your entire body starting to relax. Visualize each of the day?s stress leaving your body and many types of tense muscles becoming peacefully relaxed. Do this by emphasizing fully relaxing the muscles in each section of the body. A good place to begin is a the pinnacle and face, then slowly move onto the neck, shoulders, down each arm, the chest, abdomen, shoulders, lower back, legs, and feet. It is important never to begin the following location prior to the area you happen to be currently emphasizing is totally relaxed.