Search results
Results from the WOW.Com Content Network
The Neolithic demographic transition was a period of rapid population growth following the adoption of agriculture by prehistoric societies (the Neolithic Revolution).It was a demographic transition caused by an abrupt increase in birth rates due to the increased food supply and decreased mobility of farmers compared to foragers.
In demography and population dynamics, the rate of natural increase (RNI), also known as natural population change, is defined as the birth rate minus the death rate of a particular population, over a particular time period. [1] It is typically expressed either as a number per 1,000 individuals in the population [2] or as a percentage. [3]
Population dynamics overlap with another active area of research in mathematical biology: mathematical epidemiology, the study of infectious disease affecting populations. Various models of viral spread have been proposed and analysed, and provide important results that may be applied to health policy decisions. [citation needed]
Population growth is the increase in the number of people in a population or dispersed group. Actual global human population growth amounts to around 83 million annually, or 1.1% per year. [ 2 ] The global population has grown from 1 billion in 1800 to 8.1 billion in 2024. [ 3 ]
According to the United States Census Bureau, in 2012 there were 45.6 million people in the US (14.8% of the under-65 population) who were without health insurance. Following the implementation of major ACA provisions in 2013, this figure fell by 18.3 million or 40%, to 27.3 million by 2016 or 8.6% of the under-65 population.
In demography, demographic transition is a phenomenon and theory which refers to the historical shift from high birth rates and high death rates to low birth rates and low death rates, as societies attain more technology, education (especially of women) and economic development. [1]
CMS administers Medicare, the federal health insurance program for those mostly aged 65 and older. More than 66 million people in the U.S. receive coverage through Medicare, the program says.
The rapid population growth of Afghanistan is considered a problem when it prevents population stabilization and affects maternal and infant health. [34] [35] Reasons for large families include tradition, religion, the different roles of men and women, and the cultural desire to have several sons. [34] [36]