In vitro fertilization are medically assisted reproductive procedures that help more women give birth. And new research shows these types of modern technology are resulting in a twin peak — more twin births globally — even as more women choose to have babies later in life.
Researchers analyzed birth records in 100 countries and found since the 1980s, twin birth rose by a third. One in 42 people are born a twin. That’s 1.6 million twins worldwide.
While we’ve reached a modern high when it comes to twin births, researchers say we may be hitting a peak as more fertility specialists are focusing on single embryo transfers.