According to the Global Health Observatory , nine major diseases in the world cause the most victims.
Among these diseases there are those that affect the heart, infections, cancer but also diseases caused by water contamination and diseases that affect adulthood, such as senile dementia and neurodegenerative diseases.
Some of these diseases are typical of some areas of the world, where hygiene and health conditions are in worse situations than in other countries, while others affect the whole world, without distinction.
Among the first diseases in the world that cause death are those affecting the heart.
Among the main diseases in the world also those that affect the brain, such as cerebrovascular diseases.
Among the most common diseases in the world, cause of mortality, there are those that affect the respiratory system, such as chronic inflammation of the lung tissue.
Diseases affecting ageing such as senile dementia and Alzheimer are widespread and cause a large number of victims.
Infections in the trachea, bronchi and lungs are among the most prevalent diseases worldwide.
Lung cancer is one of the most common and high-mortality diseases.
Water contamination causes many diseases such as cholera and dysentery, especially in poorer countries.
Diabetes, in all its forms, is one of the most widespread diseases in the world.
Tuberculosis remains one of the main diseases in the world, especially in the poorest countries.