My research advances classical life history theory by integrating methods from evolutionary game theory. This approach sheds light on how interactions among individuals influence the evolution of life history strategies. Specifically, it explores the role of genetic conflicts between family members, the role of information about other individuals, different forms of adaptive responses (plasticity), and the variety of intergenerational effects on life history decisions. In this talk, I give an overview of these main findings and discuss their implications. Specifically, I first explore the broader connection between social behaviour and life history decisions. Following this, I discuss the implications of my work in the context of ageing research and the evolution of human life history.