For couples preparing for pregnancy, in addition to necessary physical examinations, the living environment is also very important. Reasonable housing will affect the health and mood of pregnant women. Only if the mother is happy first, the baby will be happier. Heavy Yin Qi is not conducive to fertility. In terms of Yin and Yang, heavy Yin Qi in the boudoir is not conducive to conception. The so-called Yin Qi generally refers to the humidity of indoor air. If the room is in a humid environment for a long time, the humidity is too high, or the light is often dim, it will help yin and suppress yang, resulting in insufficient yang energy. Bacteria are more likely to breed in humid rooms, not to mention bringing various diseases