21-year-old Lizzie Velasquez weighs just 56 pounds (25 kilos) and has almost zero per cent body fat, but she is not anorexic. The girl fromAustin, Texas, USA, must eat every15 minutes to stay healthy. She's got a rare condition which prevents her from gaining weight even though she eats up to 60 small meals a day. Despite consuming between 5,000 and 8,000 calories daily, the communications student, has never tipped over 4st 3lbs.
Miss Velasquez's case has fascinated doctors all over the world and she is part of a genetic study run by Professor Abhimanyu Garg, MD, at the University of Texas Southwestern Medical Center in Dallas. Professor Garg and his team now believe Lizzie may have a form of Neonatal Progeroid Syndrome (NPS) whichcauses accelerated ageing, fat loss from the face and body, and tissue degeneration. People with PRS often have triangular and prematurely aged faces with a pointy nose.