Research suggests that high levels of stress and depression in expectant mothers can have a significant impact on the developing baby. Stress hormones released by the mother can cross the placenta, potentially affecting fetal brain development and increasing the risk of behavioral and emotional problems later in life. Additionally, maternal stress can lead to unhealthy coping mechanisms such as smoking or substance abuse, which further jeopardize the baby's well-being. It is crucial for pregnant women to seek support from healthcare professionals to manage their mental health effectively and promote a healthy environment for their unborn child.