IRCT20231028059885N1 IRCT 2024-01-27 Shahid Beheshti University of Medical Sciences The effect of mental relaxation technique on self –efficacy, breastfeeding sufficiency and performance of primiparous women The effect of mental relaxation technique on self –efficacy, breastfeeding sufficiency and performance of primiparous women 2023-12-16 anticipated 60 Complete https://irct.ir/trial/73545 interventional Randomization: N/A, Blinding: Single blinded, Placebo: Not used, Assignment: Parallel, Purpose: Supportive, Blinding description: The participants do not know which group they belong to and this study is a blind strain. N/A Self-efficacy, adequacy and performance of breastfeeding. Intervention 1: Intervention group:In the first session, the researcher holds a training session and teaches them about the definition, importance and types of Aramaic body through lectures and film screenings. The researcher teaches mental relaxation technique technique practically for women. Then the second session is held on another day and the women are asked to implement the training techniques for the researcher. The maximum duration of each training session is 60 minutes. Until the day of delivery, women perform mental relaxation techniques at home twice a day (in the morning and evening) and each time for 20 minutes. The mental relaxation technique continues until 60 days after delivery, and during this period, mothers follow up They can feed their baby exclusively with their own milk for 60 days after giving birth. After completing the intervention, women refer to the research environment on days 3, 10 and 30 after giving birth. In these sessions, the infant's weight, head circumference and chest circumference are measured. Intervention 2: Control group: The participants in the control group will only receive the usual breastfeeding training from the instructors of childbirth preparation classes that are taught to both groups during the seventh and eighth sessions, and no additional training will be provided by the researcher. Undecided - It is not yet known if there will be a plan to make this available Justification or reason for indecision in sharing IPD is Due to confidentiality of information