Los Angeles, Aug 12 (IANS): Actress Olivia Wilde feels "saddened and grossed out" by young women who undergo cosmetic surgery to improve their looks.

The 29-year-old has urged girls to eat a healthy diet and indulge in exercise, instead of resorting to drastic measures to change their appearance.

"Don't cut your face. I am so saddened and grossed out by young women who look like creepy, old aliens because of their new Barbie noses and lips. Is that a smile or a grimace? Did you melt hot wax on your face, or is that your skin?," femalefirst.co.uk quoted Wilde as saying.

"A better approach, take care of yourself now that you're old enough to know how. Drink water, sleep eight hours, and don't go within 400 feet of a tanning booth or I'll slap you hard," she added.

The actress also insists that she is looking forward to turning 30 in March 2014.

"I'm hitting a major milestone 30, or as I like to call it, the 'cut the bulls**t and go be awesome' stage," said Wilde.

The "Tron: Legacy" star also advices other women, who are turning 30.

"Now you get to live with that knowledge (you gained in your 20s) under your belt. Also, make it a nice belt. You're 30. Stop dressing like a hobo. And don't be bogged down by your past.

"Consider your baggage (bad boyfriends, job setbacks, body issues) lost by the airline of life, leaving you empty-handed at your new destination with only one choice, go shopping," said Wilde.