Since I became an obstetrician and gynecologist, I have heard the “pregnancy stupidity” experiences of my friends around me for many years and started to believe that “one pregnancy is stupid for three years” is indeed true. From memory loss and forgetting the password to the sudden onset of road blindness and not being able to find your way home, from looking for your phone with your cell phone to forgetting whether you had breakfast or not and finally eating two meals, all kinds of strange pregnancy foolishness experiences can make me laugh every time I hear them. The most exaggerated one, I took a 5 months pregnant friend’s car home, froze in the parking lot for two hours to find the car, and finally found that the wrong parking lot. This is what we call pregnancy stupidity, or “Baby Brain” as foreigners say. So, does pregnancy really make you stupid? In recent years, researchers from home and abroad have been studying the brain of women after pregnancy, and there has been controversy among domestic and foreign scholars as to whether there is any scientific basis for “pregnancy stupidity” or not. A recent article published in Nature Neuroscience, “Pregnancy causes long-term structural changes in the human brain,” shows that the gray matter area of the brain shrinks significantly after pregnancy, and these changes persist for at least two years, according to a study of 25 women after pregnancy and childbirth. The gray matter area of the brain is related to human memory, cognition, and thinking, but this article only illustrates the decrease in the gray matter of women after pregnancy, and there is no scientific data on the “three years of stupidity” after pregnancy. In fact, as hormones rise after puberty, girls also experience a significant reduction in gray matter in the brain. In 2015, the British Journal of Psychiatry published the results of a study by the National University of Canberra in Australia, which showed that the brains of pregnant women still have the same memory capacity as usual, but they do have a high probability of amnesia. The reason for this may be that the emotional anxiety and sleepiness they often experience during pregnancy affect the quality of their memory, and the shift in focus during pregnancy often makes them focus more on the baby at the expense of others. At the same time, the high levels of estrogen and progesterone in women during pregnancy also affect their nervous system. Research at the University of California’s Center for Research on Women’s Emotions and Hormones has shown that increased hormones during pregnancy affect nearly all neurons in the brain, and that these hormones continue to increase for some time after delivery. These elevated hormones cause women to focus less on themselves or other aspects of their lives, and the mother’s perspective naturally shifts toward the baby, perhaps as a natural part of human evolution, and perhaps as a major factor in “pregnancy stupidity. How can you enhance your memory during pregnancy and after delivery? Don’t worry about your “pregnancy silly”, you can think of it as a sign that your baby is coming. When a new member joins your family, the excitement can be accompanied by a complete disruption of your organized life. Start developing your good habits from pregnancy to help your memory. 1, Good memory is better than bad memory: Whether you use electronic memos on your phone or traditional paper and pen, keeping important things or things you tend to miss handy will keep your life on track. 2, pay attention to your diet: a balanced diet with good protein and fat can help improve brain function. In addition, consult your doctor when to start taking fish oil, fish oil is rich in Omega 3 for you and your baby’s brain development. 3, appropriate exercise: regular, appropriate exercise helps reduce stress at the same time, can clean your brain memory, stimulate the operation of brain cells. But how to exercise, how long to exercise first to get your obstetrician’s advice. 4. Take a nap: Try to take as many naps as possible, which is the hardest thing for new parents to do. Nonetheless, getting enough sleep minimizes forgetfulness.