Question: what is the main cause of high death rates in developed countries?
Answer: Approximately 3.3 million (30%) deaths annually were due to heart disease, 2.3 million (21%) to cancer, 1.5 million (14%) to stroke, 0.9 million (8%) to chronic respiratory diseases, and 0.8 million (7%) to violent causes (i.e., intentional and unintentional injuries).