During the journey of pregnancy, many women have to experience various discomforts such as nausea, vomiting, etc. These symptoms, often referred to as "morning sickness," are a common phenomenon in the first trimester. However, for some women, these symptoms can become so severe that they may even require hospitalization**. For a long time, the medical community did not know the cause of this phenomenon. However, a recent study led by the University of Cambridge reveals the mystery for us. The findings, published in the journal Nature, point out that the findings reveal a potential way to prevent pregnancy disorders by exposing mothers to GDF15 before pregnancy to boost their resistance. 
Researchers have found that a protein called GDF15 is the main cause of nausea and vomiting in pregnant women. GDF15 is a hormone produced by the fetus, which works to suppress appetite and reduce nausea in pregnant women.
However, when the fetus produces too much of the hormone or the mother is exposed to this hormone to a high degree before pregnancy, it can lead to severe discomfort in the mother. The degree of nausea and vomiting a woman experiences during pregnancy is directly related to the amount of GDF15 produced by the placenta and transported into the bloodstream, as well as how sensitive she is to this hormone.
The results of this study have important implications for improving the health of pregnant women.
First, it provides the medical community with a better understanding of the causes of nausea and vomiting in pregnant women, providing a basis for further research and**.
Second, it may help develop new ways to alleviate uncomfortable symptoms in pregnant women. This not only helps to improve the quality of life of women, but also provides protection for the health of mothers and babies.
However, while seeing the results of this study, we must also realize that it is not a simple matter for pregnant women to be exposed to GDF15 to boost their resistance before pregnancy. This requires pregnant women to have enough knowledge of their physical condition and be able to do so under the guidance of a doctor. At the same time, we cannot ignore those pregnant women who are unable to reduce their symptoms even after exposure to GDF15 before pregnancy. Therefore, we need more research to understand the complexity of this phenomenon and find more effective methods. Still, the results of this study are significant. It not only reveals the causes of nausea and vomiting in pregnant women, but also provides new ideas for prevention and **, a common problem. In the future, we look forward to seeing more research leading to more breakthroughs in this area to bring a healthier and more comfortable pregnancy experience to all pregnant women.