The World Health Organization (WHO) estimates that the burden of disease in the world is considerable, with an estimated 35 million people dying from all causes every year. The top diseases in the world are largely determined by their prevalence in developing countries, where access to health care and preventive measures is often limited. According to the WHO, the leading cause of death worldwide is cardiovascular disease, which accounts for 17.9 million deaths each year. This is followed by cancer, which accounts for 8.2 million deaths each year, and respiratory diseases, which account for 4.2 million deaths each year.
Other leading causes of death around the world include HIV/AIDS, diarrheal diseases, diabetes, tuberculosis, and malaria. HIV/AIDS is the leading cause of death in sub-Saharan Africa, where it accounts for 1.6 million deaths annually, while diarrheal diseases is the leading cause of death for children in that region. Diabetes is the leading cause of death in the Americas, accounting for 1.2 million deaths every year.
The other leading causes of death worldwide, such as tuberculosis and malaria, are largely preventable and treatable through access to health care and preventive measures. Tuberculosis is the leading cause of death in the Eastern Mediterranean region, where it accounts for over 600,000 deaths each year, while malaria is the leading cause of death in the African region, with over 400,000 deaths annually.
In conclusion, the leading cause of death worldwide is cardiovascular disease, followed by cancer and respiratory diseases. HIV/AIDS is the leading cause of death in sub-Saharan Africa, while diarrheal diseases is the leading cause of death for children. Diabetes is the leading cause of death in the Americas, while tuberculosis and malaria are the leading causes of death in the Eastern Mediterranean and African regions, respectively.