International Journal of Public Health Science (IJPHS) Vol. 13, No. 4, December 2024, pp. 1841~1847 ISSN: 2252-8806, DOI: 10.11591/ijphs.v13i4.24543  1841 Journal homepage: http://ijphs.iaescore.com Exclusive breastfeeding behavior based on physical endurance and economic resilience of the family Titi Maharrani 1 , Evi Yunita Nugrahini 1 , Mohammad Dwinanda Junaedi 2 , Evi Pratami 1 1 Department of Midwifery, Poltekkes Kemenkes Surabaya, Surabaya, Indonesia 2 Department of Obstetrics and Gynaecology, Faculty of Medicine, Nahdlatul Ulama University Surabaya, Surabaya, Indonesia Article Info ABSTRACT Article history: Received Jan 28, 2024 Revised Apr 7, 2024 Accepted Apr 24, 2024 Breast milk is the best food for babies that can be given until the child is two years old or more, it is proven that breast milk has advantages that cannot be replaced by any food and drink because it contains the most appropriate, complete, and always adjusting nutrients with the baby's needs at all times. This study aimed to analyze the relationship between physical endurance and economic resilience of the family on exclusive breastfeeding behavior. This research was analytic research using a cross-sectional design. The sample of this research was 108 postpartum mothers who were taken by simple random sampling technique. The independent variables in this study were physical endurance and economic resilience, while the dependent variable was the behavior of exclusive breastfeeding. All data were collected using a questionnaire prepared by the researcher, and data were analyzed using a logistic regression test. Adequacy of food, housing ownership, and health insurance ownership are factors that influence exclusive breastfeeding behavior with a p-value <0.05. While 8 other indicators including nutritional adequacy, family health, resting place, income, income adequacy, children's educational ability, dropping out of school, and ownership of family savings do not affect exclusive breastfeeding behavior. Physical endurance relationship between the behavior of exclusive breastfeeding on the indicator of food adequacy and the factor of economic resilience affects the behavior of exclusive breastfeeding on the indicators of housing ownership and health insurance. Keywords: Breastfeeding behavior Economic resilience Exclusive breastfeeding Food adequacy Health insurance Housing ownership Physical endurance This is an open access article under the CC BY-SA license. Corresponding Author: Titi Maharrani Department of Midwifery, Poltekkes Kemenkes Surabaya Surabaya, East Java, Indonesia Email: titimaharrani@poltekkesdepkes-sby.ac.id 1. INTRODUCTION Breast milk is the best food with all the nutritional needs of babies in various stages of growth up to six months after birth [1]. It can be given until the child is two years old or more, it is proven that breast milk has advantages that cannot be replaced by any food and drink because it contains the most appropriate, complete, and always adjusting nutrients with the baby's needs at all times [2]. Providing breast milk has been shown to reduce the risk of various infections (diarrhea until fivefold, respiratory infections, ear infections, pneumonia, urinary tract infections) and other diseases. Breastfeeding can protective from multiple illness (respiratory and gastrointestinal) at least up to six months of age [3]. Breast milk is beneficial for maintaining the health of the baby's body because it contains strong antibodies to prevent infection. Not only prevent infection, breastfeeding also reduces morbidity/mortality rates in young children, and their intelligence [4]. Besides being beneficial for the baby, breastfeeding helps the mother to recover from the