Paulina Porizkova is one of the most successful models of all time. She's still showing off her body on social media at age 57. In a recent Instagram post, Porizkova posed in a leopard print bikini. In the caption, she talked about what she has learned growing up in the spotlight. Read on to see 5 ways Paulina Porizkova stays in shape and the photos that prove they work—and to get beach-ready yourself, don't miss these essential 30 Best-Ever Celebrity Bathing Suit Photos!

Porizkova is known for being very outspoken on Instagram. She talked about double standards in society in this post. She wrote, "Athletes versus models. Both start their careers very young. Both make large amounts of money based on their physicality – in direct proportion to the demand – for their service. Both need to keep themselves in prime physical shape. Both jobs are physically and sometimes emotionally painful. Both careers end when most others just come into their best. Both are a celebration (or objectification) of the human body. Both demand sacrifices in personal lives. Both are used for your entertainment and to sell you products. One highlights mostly men, the other mostly women. And as they start aging out of their careers, if they refuse to give up quite yet – one gets applauded and is seen as heroic, and the other shamed as pathetic."

Porizkova loves to spend time outside. One place she loves to go is the beach. She posted this photo of herself in Costa Rica on Instagram. She captioned it, "It's been a wonderful week in Costa Rica, filled with sun, jungle, ocean, pool, long dinners, lots of books read, and of course, the antics of George the monkey."

Porizkova is not afraid to call out social media haters. She did so in this Instagram post."A woman of 57 is 'too old' to pose in a bikini – no matter what she looks like. Because 'Old' is 'Ugly.' I get comments like these every time I post a photo of my body. This is the ageist shaming that sets my teeth on edge. Older men are distinguished, older women are ugly. People who believe prettiness equals beauty do not understand beauty."df44d9eab23ea271ddde7545ae2c09ec

In the same Instagram post, Porizkova says that she is embracing her age. "To perceive beauty you have to be able to SEE. This is why I believe we get more beautiful with age. We have earned our beauty, we understand what it is, and we can see it so much better. There is no such thing as ugly and old. Only shortsighted and ignorant."

Porizkova says that she likes to intermittently fast as a way to stay in shape. She explained her process on Instagram. "You don't eat for 16 hours and then you eat for eight," Porizkova said. "I generally take it as I eat whatever I want for eight hours because I like food, but I also kind of tend to like more healthy food."