In abdominal photography, the purpose of deep breathing is

During abdominal photography, the purpose of deep breathing is to increase the oxygen content in the blood. According to relevant data, taking a deep breath and then holding your breath can increase the oxygen content in the blood, prolong the holding time and achieve the goal of being completely motionless. This method is usually used to photograph the position of the ribs under the abdomen or diaphragm. After exhaling, the diaphragm rises, the abdominal body becomes thinner and the image is clearer.