World’s Oldest Conjoined Twins (57-year-old)

When Maureen Galyon gave birth in 1951, she had no idea she was expecting two babies – let alone conjoined twins. The tots, joined at the torso, were not expected to survive the night as baffled doctors tried to work out if they could be separated.

Now, at 57, Ronnie and Donnie are the world’s oldest conjoined twins and have amazed the medic world by hanging onto life for so long. And, as their health declines and they near their dying days, the pair have opened their doors to a documentary team to reveal the secrets of their extraordinary life together. Although every day is a struggle as the men have to coordinate the simplest of tasks, they have a close, loving relationship and are able to live together in their own home in Dayton, Ohio.

World’s Oldest Mother (70-year-old)

Meet Rajo Devi Lohan, the Indian woman who, in November 2008, gave birth to her first child – at the age of 70. She said she had waited for more than 40 years for this child and that she plans to breastfeed her for at least three years. And, who knows, maybe she will.

World’s Oldest Yoga Instructor (83-year-old)

Yoga instructor Bette Calman may be 83, but she’s still bending over backwards to spread the benefits of the ancient Indian discipline. The nimble grandmother can really pull some shapes and with her set hair and pearl earrings she looks as glamorous as Greta Garbo in a pink jumpsuit. With 40 years of teaching under her belt, the Australian wonder is living proof that a lifetime’s dedication to yoga will keep you flexible as a rubber band.