1, abdominal breathing. The basic movements are: put your fingers in a triangle, put your hands on your abdomen, inhale slowly through your nostrils, relax your abdomen, and press the air to the bottom of your abdomen. Then slowly contract the abdominal muscles and exhale. Exhale is slower than inhale. It breathes at the bottom of the lungs.
2, chest breathing. The basic movements are: shut up, inhale naturally, and exhale evenly with short and powerful nostrils. Exhale frequency is about once per second. Breathing mainly occurs in the upper and middle parts of the lungs.
3. Breathe completely. The basic action is: slowly inhale into the abdomen until you feel full, slowly lift your breath to your chest, and generally lift your shoulders while inhaling. Finally, relax your shoulders, shrink your chest and exhale. The upper, middle and lower parts of the lung are all involved in breathing.