Whether or not aging is a disease is a matter of debate. Aging does not directly cause death, but causes a wide range of age-related diseases and disorders that are eventually fatal. Aging could be considered to be the universal disease that causes all diseases of aging. Different age-related diseases could be considered to be the different manifestations of aging throughout the body, similar to how different cancers are manifestations of the same disease in different tissues. However, many argue that aging is too broad a concept to be called a disease, as it cannot yet be reduced to a few, specific processes.