For those women who are planning to have children, we suggest you take the following advice during the preparation period: 1. drink more water, urinate more often, and do not hold urine; 2. avoid being sedentary and exercise in moderation; 3. ensure at least 7 hours of effective sleep every night (do not stay up late and go to bed before 11:00 p.m.); 4. avoid long-term exposure to high temperature, high radiation, and chemically toxic environments; 5. avoid smoking, alcohol, and spices, and eat lean meat and eggs in moderation; 6. Avoid smoking, alcohol and spicy food, eat lean meat, eggs and other protein-rich foods, eat deep-sea fish (swordfish, Spanish mackerel, etc.) in moderation, eat less sea crab and shrimp, and eat vegetables and fruits in moderation; 6. The psychological factors are closely related to whether the embryo will implant or not; 8, pay attention to keeping warm in the air-conditioned environment to avoid catching a cold.