She used to be the tallest living teenager, but now Rumeysa Gelgi of Turkey is all grown up. Guinness World Records has certified the 24-year-old in its record book, measuring her just over seven feet tall. Gelgi’s height is a result of Weaver Syndrome. It’s a rare condition that causes rapid growth and can start before birth, but Gelgi has used her platform as a world record holder in the past to help educate people. Inside Edition Digital’s Mara Montalbano has more.