Summary: Appropriate exercise during pregnancy can accelerate blood circulation throughout the body, increase the oxygen supply to various organs, and increase the energy consumption of each organ. On the one hand, it can promote gastrointestinal motility and improve constipation; on the other hand, it can improve edema, rapid weight gain and low back pain during pregnancy. Recently, two pieces of news have refreshed everyone’s concept of “anti-birth”. One is a female volleyball player from Puerto Rico who still appeared at the Rio Olympics after four months of pregnancy; the other is the well-known actress Yao Chen who posted about her pregnancy fitness on Weibo