What causes insomnia during the second trimester of pregnancy?

The causes of insomnia during the second trimester of pregnancy can be summarized as follows: 1. Hormonal changes: During the second trimester, pregnant women experience significant hormonal fluctuations, which may lead to autonomic nervous system dysfunction, resulting in symptoms such as insomnia and dizziness. 2. Uterine enlargement: As the fetus grows, the uterus gradually enlarges, potentially exerting pressure on the abdomen and causing discomforts such as pain and frequent urination, thereby disrupting sleep. 3. Psychological factors: Pregnant women in the second trimester may experience anxiety and depression due to concerns about fetal health, their own physical condition, and risks associated with childbirth, all of which can contribute to insomnia. 4. Dietary habits: If pregnant women do not pay attention to their diet during the second trimester and consume excessive spicy, greasy, or stimulating foods, gastrointestinal discomfort may occur, subsequently affecting sleep quality.