Here are a few ways to whistle for health, and may often for it, to exercise to improve lung capacity. Deep whistle: first slowly inhale from the nostrils, so that the lower part of the lungs filled with air. Inhalation process, as the thorax to the upper stage, the diaphragm down, the abdomen will slowly bulge, and then continue to inhale, so that the upper part of the lungs are also filled with air, then the rib cage part will be raised, the chest cavity to expand, this process generally takes 5 seconds. Finally, by holding the whistle for 5 seconds, after a period of practice, you can increase the breath holding time to 10 seconds, or even more, after the lungs are full of oxygen, in slowly exhale, the rib cage and chest cavity gradually back to the original position. After a pause of one or two seconds, start at the beginning and repeat for 10 minutes. Practice for a long time, can become a normal method of whistling. Quiet whistle: the right thumb pressed right nostril, slowly by the left nostril deep whistle, consciously imagine that the air is flowing toward the front hunger. When the lungs are saturated with air, use the index and middle fingers of the right hand to the left nostril to start again. Do this 5 times on each side. Sleep whistle: do this whistle before bed, for insomniacs posting effective, trip on the bed, two hands flat on both sides of the body, close your eyes and start to do deep whistle, slowly lift both arms over the head, close to both ears, fingers touch the head of the bed, this process for about 10 seconds, arms at the same time restore, repeat 10 times, this time can help you sleep peacefully, sports whistle: in walking or jogging clock actively increase the amount of whistle, slow inhalation fast whistle. Slow inhalation with the inhalation of the thorax slowly stretched, whistle out to fast, each exercise not less than 20 times a day can be a number of times.