Breathing methods for childbirth: a. chest breathing, used when the pregnant mother is just starting to give birth, at this time the cervix opens about three centimeters, at this time the mother-to-be can feel the uterus contracting every 5-20 minutes, each contraction is about 30-60 seconds long, the mother-to-be can learn, by the nose a deep breath, with the uterus contraction will begin to inhale and exhale repeatedly, until the pain stops, only to resume normal breathing. Second, blowing candles exercise, applied at the end of the 1st stage of labor, because at this time the doctor will not give the pregnant mother force, at the beginning of the labor pain, the pregnant mother first inhale deeply, followed by a short but strong ha breath can shallow spit 4 times, followed by 1 spit out all the air, like blowing candles, practice needs to reach 90 seconds each time.