This research proposal investigates the major factors causing obesity among children aged 6-15 in Ealing, London, aiming to identify risks and promote healthy lifestyles. It addresses the research question: "What are the factors that causes obesity among children at younger age of 6-15 in Ealing?" The study highlights the rising rates of childhood obesity in England, focusing on Ealing due to its high prevalence. The introduction defines obesity and its causes, including unhealthy diets, lack of physical activity, and genetics. The background and rationale emphasize the increasing global issue and the need for intervention. The research employs both primary (interviews, questionnaires) and secondary (existing data) research methods, including quantitative and qualitative approaches, to gather comprehensive data. The methodology includes random sampling and detailed explanations of each research method. The aim is to determine the factors causing childhood obesity and suggest measures for improving children's health, considering the potential health problems associated with obesity.