Progeria is also known as Hutchinson-Gilford progeria syndrome (HGPS) or the “Benjamin Button” disease (named after the short story and movie 'The Curious Case of Benjamin Button'). It's a rare genetic condition that results in a child's body aging rapidly.

Is the curious case of Benjamin Button real?

Benjamin Button is loosely based upon a short story written by F. Scott Fitzgerald, who – in a letter to his editor, Harold Ober – sullenly acknowledged that he would be remembered for his flapper stories, like The Great Gatsby, and not his other works.

Is there a disease that causes you to age backwards?

Hayley Okines, 17, passed away Friday after suffering from progeria, a genetic disorder which causes people to appear to age in reverse. She had the body of 104-year-old when she died, the Irish Mirror reported.