Many people do not know that the two nostrils of a person are not breathing at the same time, but instead take turns and rotate about every 4 hours.
When people in the mood fluctuations, mostly with the right nostril breathing, and emotional stability or drowsiness, it is more dependent on the left nostril, with the right nostril to smell, often the smell of the better, the left nostril has strong judgment, to distinguish the smell more accurate.
In addition, consciously using two of the nostrils alternately breathing, not only can give the left and right brain to provide the same amount of oxygen, so that people energetic, but also can let people from the lungs to discharge a lot of waste gas and impurities. The method is: Use your thumb to press the left nostril, just inhale slowly with your right nostril for a few seconds, then rotate