How can a young woman age 50 years in just a handful of days? That's what shocked doctors are rushing to discover. Nguyen Thi Phuong, a 26-year-old, now has the physical body of a 76-year-old woman. When she turned 23 during 2008, she suddenly aged 50 years in appearance, virtually overnight. Mystified doctors seeking an answer to her condition aren't sure that her belief that it happened from an allergic reaction to seafood could be the cause. In fact, during a frenzied search across medical records worldwide, the doctors have come up empty-handed. They are admitting it may be a new type of malady never before encountered in medical practice.