For many people, the population’s growth is very concerning to a ton of citizens of the world, but in reality, the population’s growth isn’t as bad as everyone makes it out to be, in fact, it’s better than it’s ever been and will continue to improve as the years go on. In the 1800s, the world’s population had reached 1 billion people, and in 1940, it had reached around 2.3 billion. The population continued to grow reaching a milestone of 7.4 billion in 2016, and it’s not stopping there. The UN (United Nations) believes that “…it will continue to grow steadily, according to forecasters, reaching 8.5 billion in 2030, 9.7 billion in 2050, and 11.2 billion in 2100.” stated on their website. It seems as if the population growth is going at a steadier past than it was 2 hundred years ago. The three reasons for this are mainly fertility rates in most countries, the increasing of longevity, and international migration. These three things are what allow a more stable growth rate and the main reasons as to why overpopulation is never going to be a problem. First of all, let’s talk about the fertility rates from years and years ago. Back in 1750, most countries suffered from poor hygiene, had no clean medical equipment or medicine to cure their illnesses, their diets were unhealthy, and they had poor sanitation. The fact that they lived in these conditions resulted in the death of many of the babies that were born. Less than 25% of kids would survive past the age of 5. Due to these many deaths, the populations hardly grew, and the death rate was slightly higher than the birth rates. Women had multiple children just in case some of their kids didn’t survive and this gave a chance for at least ? of those children to survive into adulthood. This changed after many decades when better food choices, hygiene, and medical supplies became available with the development of farming, technology, and medicine. Women then started to have fewer children when the deaths and births were balanced. Families everywhere were then conceiving less children and the population started to slowly decrease then leading to the end of population growth. In the 1970’s the average number of kids in a household was 5. Compare that to now where the average is 2.5 kids in a household. A pretty significant difference. The second contribution to the steady growth rate seems to be the increasing longevity of humans. Caleb Finch, a gerontologist and evolutionary biologist explains that around ancient Greek and Roman times, the average lifespan stretched from approximately 20 to at least 35 years through these numbers are only based on skeletons and graveyard epitaphs. Later on near the middle of the 18th century, the lifespan didn’t seem to change staying at 35 years. This is most likely early due to diseases or infections in wounds that weren’t treated properly. “It does not mean that the average person living in 1200 A.D. died at the age of 35. Rather, for every child that died in infancy, another person might have lived to see their 70th birthday,” told by Sharon Basaraba on the very well website. So to clarify, it seemed as if the lifespan of a regular citizen just depended. People who lived past the age of 15 were really expected to live a long life, that was until the Black Plague destroyed a third of the European population changing the longevity significantly. Before the 1800’s, life expectancy was around 30 to 40 years.