What type of stress factors could contribute to spontaneous preterm birth?

• A. Inadequate nutrition
• B. Maternal psychosocial stress
• C. Lack of exercise
• D. Smoking during pregnancy

Answer: (B)

Maternal psychosocial stress is a significant contributor to spontaneous preterm birth, as it can lead to various physiological and hormonal changes that may impact pregnancy outcomes. High levels of stress can trigger the release of stress hormones such as cortisol, which can influence uterine contractions and the timing of labor. Stress may also affect maternal health behaviors, prenatal care access, and overall well-being, further elevating the risk of preterm labor.

While inadequate nutrition, lack of exercise, and smoking during pregnancy certainly have their own implications for adverse pregnancy outcomes, maternal psychosocial stress encompasses a broader range of factors that can directly influence the biological processes leading to preterm birth. For instance, stress can exacerbate existing health issues, lead to poor nutritional choices, and contribute to behaviors like smoking, making it a pivotal focus when considering risks for spontaneous preterm birth.