Modern medicine recognizes the potential impact of stress on physical well-being, but can stress pass through the mother to the fetus? Indeed, it has been hypothesized that maternal chronic stress can alter the uterine environment and may affect length of gestation, fetal growth, birth weight, and spontaneous preterm birth. Similarly, research on cortisol levels in fetuses and mothers has found that anxiety in mothers can affect the function of the placenta. With so much evidence pointing to the interaction between maternal psychological well-being and fetal wellness, there has become an increased need to find effective, nonpharmacological interventions for pregnant women.