Despite being 54 and having just gone through what must have been the worst year of her life, supermodel and mom extraordinaire somehow manages to look better than most women half her age. How does she do it?

According to People magazine, she credits her eating and fitness habits to her good looks: "Nutrition has always played a huge role in my life," Brinkley said in a recent interview. "I became a vegetarian when I was 13 and then got my entire family to become vegetarians. I have always been active my whole life. I genuinely enjoy sports and I spend time on my total gym."

Her positive attitude can't hurt either -- says Brinkley, the most recent poster girl for the Got Milk campaign, "I want to seize the day and take advantage of this year ... I am so energized."

Well, it's obviously working for her, don't you think?

(via Fitsugar)