The Effect of Virtual Reality-Based Relaxation on Breast Milk Volume and Breastfeeding Self-Efficacy in Mothers of Preterm Infants

Inclusion Criteria: * Mothers who have given birth to a single infant between 32 and 35 weeks of gestation. * Mothers whose infants are hospitalized in the Neonatal Intensive Care Unit (NICU). * Mothers who have delivered via Cesarean section. * First-time mothers (Primiparous). * Mothers who are willing to provide breast milk and participate in the study. * Mothers whose infants are not yet able to breastfeed directly and require milk expression. Exclusion Criteria: * Mothers with any systemic or psychiatric diseases. * Mothers with obstetric complications. * Mothers who have a history of using addictive substances. * Mothers who use medications or herbal products to increase breast milk (galactagogues). * Mothers with hearing or vision impairments that would prevent the use of a VR headset. * Mothers whose infants have congenital anomalies.