Population Dynamics, Types of it, Population Migration (External and Internal), Its Determining Factors, Principal Trends, and how it affects population health

Population dynamics have been characterized as alterations over time in populations' size, structure, and distribution, via births, mortality, and migration. This article outlines various categories of population dynamics, with focus on migration—both internal and external—and the intricate determinants influencing it. Migration, being a component of population change, is determined by socio-economic, environmental, political, and demographic factors. The article also examines international and regional migration trends and analyzes the long-term consequences that immigration has on population health, including health care access, disease prevalence, mental illness, and health system response. The dynamics of these phenomena are crucial in informing effective public policy and addressing the health needs of hosts and migrants