A new study says the world's Muslim population has increased more than all the other religions combined over the decade between 2010 and 2020.

A senior official says a third of Iran’s population will be aged 60 and older by 2050.

Population expert Alessandro Rosina has called the country’s birth rate decline “irreversible” as more than 358 regions experienced no births in 2023.

The recent idea of relocating the capital from Tehran is the latest in a string of proposals floated by multiple administrations to move the government from the sprawling city of 15 million people.

People in major Iranian cities are struggling with another bout of poor air quality as a cold wave is extending its grip over the country, trapping pollutants in the heavy air.

Western media is accusing the Lancet of blood libel after the British medical journal warned that the true death toll of the Israeli war on Gaza could exceed 186,000.

China’s population declines for a second straight year despite Beijing's efforts to increase marriage and childbirth in families.