Lisa Rinna in Swimsuit Flaunts Rock Hard Abs

Lisa Rinna celebrated her abfab figure in honor of throwback Thursday! The Real Housewives of Beverly Hills star, 58, shared a fun photo on her Instagram account this week of herself and husband, Harry Hamlin, showing off their swimsuit bodies during a walk on the beach. “Mom and dad,” she captioned the snap, which highlighted her chiseled, washboard abs. How has the actress-slash-reality star managed to maintain her fit figure over the years? Read on to see 6 ways Lisa Rinna 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 Bikini Photos!

1. She Is Constantly Moving

July 12, 2009: Lisa Rinna and husband Harry Hamlin photographed taking a stroll on the beach in Malibu, California.Credit: The Media Circuit/INFphoto.com Ref.: infusla-133

Lisa is incredibly active, which not only helps keep her in physical shape but mental as well. “I’m always doing something. I just do because I feel better,” she explained to OWN. “If I feel better, I’m nicer. If I’m nicer, my life goes better.”

2. She Is All About Workout Videos

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Lisa has been a fan of workout videos since she was a kid. “When I was 16, I discovered jazzercise. And I thought it was the greatest thing since peanut butter and jelly,” she revealed to Parade. Jane Fonda also helped rev her heartbeat "Oh, God. I loved that so much.” In 2008, Lisa joined the ranks of workout video queens with her very own, called Dance Body Beautiful.

3. She Is a “Dirty Vegan”

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Lisa maintains a mostly plant-based diet. “I tend to call myself a dirty vegan," she told People. “I’m mostly plant-based—but if I do need to eat some meat, I’ll have it.”

4. It’s All About Moderation

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While she eats healthy most of the time, she isn’t afraid of noshing on a burger. "I don’t love to use the word diet because if I do, I’ll just want to eat 10 times more,” she explained to People. “Moderation is key."

5. Consistency Is Key

For Lisa, exercise and healthy living isn’t a passing trend. “For me, staying in shape has always been a part of my life, and it’s all about consistency," Lisa told OWN. "I've worked out my whole life."

6. She Makes Exercise Fun

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"My one piece of advice though is finding more than one form of exercise that you love to do and then mixing it up," she wrote in a blog on her website. "One day do the Pilates, and then the next day you play tennis. Maybe you can even incorporate a Friday night salsa dancing class with your girlfriends!"