What is the reason for being sensitive to smells

Many people have a very keen sense of smell, and are particularly sensitive to smells. Generally speaking, women will become particularly sensitive to smells after pregnancy, which is one of the major changes after pregnancy. Smell sensitivity is closely related to women's pregnancy reaction. There are different opinions on this situation. So what are the specific causes of smell sensitivity?

1. Hormone changes

Some mothers will find that after pregnancy, they become particularly sensitive to smells. Some smells that they used to like may make them feel nauseous, and some people may like some "strange smells". This is a very common phenomenon among newly pregnant mothers. While no one knows exactly why, it may be a side effect of the rapid increase in estrogen in a pregnant woman's body.

2. Estrogen and smell complement each other

Many of the changes that occur in a woman during pregnancy are largely due to hormones. When pregnancy occurs, estrogen levels increase. Estrogen and sense of smell complement each other and are very closely related. Previous experiments have shown that the role of prolactin in neurogenesis during pregnancy makes pregnant mice more sensitive to odors, which may help to alert the mothers to danger. Although the work was done on mice, it still "confirms the suggestion that pregnant women are more sensitive to odors."

Smell sensitivity causes morning sickness but also has benefits

3. Others

Some researchers believe that sensitivity to smells can cause morning sickness, which is good for us. Because this can prevent the intake of certain chemicals or foods that are harmful to the fetus. After becoming pregnant, many pregnant women will feel nauseous and want to vomit, and are particularly sensitive to certain smells. This is a normal phenomenon during pregnancy. This is actually a protective mechanism that forces pregnant mothers to avoid substances or environments that may be harmful to them or their fetuses.