This document discusses how lifestyle can affect the respiratory and circulatory systems. It begins by stating the expected learning outcomes, which are to identify lifestyle effects on these systems, infer how lifestyle impacts system function, detect and prevent diseases, and create an infographic on care. It then reviews the systems' functions and components. The rest of the document describes specific respiratory and circulatory diseases, their causes, symptoms, and prevention/treatment methods. Key lifestyle factors discussed are cigarette smoking, diet, exercise, hygiene, and their roles in disease development. The takeaway message is that lifestyle choices like these significantly impact health by potentially leading to diseases that burden the respiratory and circulatory systems.