Lee Su Jin, a 51-year old dentist from South Korea, often gets mistaken for her daughter’s sibling. Korean TV calls her “goddess of eternal youth”, and she simply refuses to age! Apparently, the keys to the 51-year-old dentist’s youth are a balanced lifestyle, incurable optimism, and skin care. She makes sure to keep in great physical shape, visiting the gym a few times a week. She also has confirmed that she had had no plastic surgery done.