When they were born premature in 1912, doctors gave Paulette and Simone the slimmest chance of survival. But they have lived to over 104 years.
Twins share genes, and when one gets cancer, the other faces a higher risk of getting sick too, according to a study that included 200,000 people.
"We wanted to see if we were one of the first ones" born in the new year.
Sign up to receive our free newsletter