This report provides a comprehensive overview of the influence of the life course on health and well-being. It begins by defining the life course approach and its relevance to public health, emphasizing the interconnectedness of socio-economic and individual contexts. The report then delves into the four key stages of life: childhood, adolescence, adulthood, and old age, highlighting health considerations specific to each, such as maternal and newborn health, child and adolescent health, sexual and reproductive health, and healthy aging. Furthermore, it explores the interplay of nature, nurture, diversity, and culture across these life stages, examining factors like education, genetics, and environmental influences. The report then discusses health promotion opportunities at different stages, including behavioral change, medical interventions, client-centered approaches, societal change, and educational strategies. Finally, it underscores the importance of ethical principles, such as autonomy and justice, in health promotion and public health practices, ensuring fair and equitable healthcare delivery.