Rose Byrne: 'I'm a little lazy when it comes to exercise'

Rose Byrne has admitted she is too "lazy" to ever become addicted to exercise.

The Bridesmaids actress has confessed that unlike her many of her friends who love to work out, she needs to push herself when it comes to hitting the gym.

"It's an addictive thing, it gives you this rush," she told Harper's Bazaar. "I have friends who dedicate their lives to it and I admire that, I see how much of a priority it can become. I'm a little bit lazy... I'm not that good. We Australians are outdoorsy but I do have to motivate myself."

Rose had to step up her exercise regime and trained "for months in advance" to convince in her role as an aerobics instructor battling bulimia for Physical, a new series from Apple TV +.

The star was fascinated by the "raw" character and is proud to be involved in a project that tackles the issue of eating disorders and society's unrealistic pursuit for perfection.

"There is so much irresponsibility in diet culture," Rose said. "I have such a tortured - not tortured! - difficult relationship with social media because it can be so destructive.

"Disordered eating is not depicted that much onscreen and is either a punchline or a Lifetime movie. Its presentation in the show is never lurid but it's tough to watch - it's this awful, destructive cycle."

The 41-year-old is thankful that, unlike her character, she has always managed to enjoy a healthy relationship with food.

"Look, I'm as self-conscious as the next person and of course this business is tough like that," she shared. "You just have to navigate it. As I've got older, I've got better at it. But it's hard, particularly as women.

"Growing up, my sisters and I were lucky enough to always be surrounded by good foods and we were encouraged to eat. I was never was exposed to body-shaming, but that's pretty rare. It's a hard thing to avoid."