On 15 November 2022, the United Nations said the world population reached eight billion people. On the occasion of World Population Day, the UN Secretary-General António Guterres cited advancements in health that have extended lifespans and dramatically reduced maternal and child mortality rates.
Global life expectancy at birth reached 72.8 years in 2019 and further reductions in mortality are projected to result in average global longevity of around 77.2 years in 2050.
