Happy birthday, Isla Fisher [1]! This fit, funny, and fabulous Great Gatsby star turns 38 today. Even though she has her hands full with two little girls [2] and a busy career, Isla makes her healthy lifestyle a priority every day. Here's how she balances it all.

She takes it outside: Isla's not the biggest fan of the gym, and her preferred method of exercise is to hike in the Hollywood Hills. She's also able to swim every day [3] with her two daughters, Olive and Elula, since they're blessed with that gorgeous LA weather!

She loves her yoga: She doesn't just roll out her mat occasionally; Isla practices yoga five days a week [4]. She appreciates the "mind-body experience" that a yoga class offers, and the lessons she learns travel far off her mat. Isla says when she's stuck in traffic or having a rough spot in her day, "I go back to my yoga practice and I breathe." Everything feels a little lighter and easier after a few deep, relaxing breaths.

She grabs a buddy: There's strength in numbers when it comes to a workout routine, and Isla understands! She's been spotted with fellow actress Kirsten Dunst [5] hitting up a Tracy Anderson Method dance cardio class in LA's Studio City. Having a workout buddy helps hold you accountable for your routine — you're far less likely to bail on a workout when you've committed to a friend.

She's a (partial) pescatarian: Isla has a primarily vegetarian diet [6], since she's a big animal-lover, but she eats "a lot of fish for omega-3(s)." She has a somewhat (surprising) rule to decide what animals she'll eat; Isla told Women's Health UK, "I can’t eat anything that breastfeeds." As a mom, Isla feels a personal connection to this vegetarian cause.