What does epidemiological transition mean?

Epidemiological transition refers to the shift in disease patterns observed in populations as they undergo economic and social development. This transition typically involves a decline in Infectious Diseases and an increase in chronic, lifestyle-related conditions, such as Heart disease and Diabetes. It reflects changes in mortality, fertility, and health behaviors, often paralleling improvements in healthcare, nutrition, and living standards. Overall, this concept highlights the evolving health challenges faced by societies as they progress through different stages of development.