'It's daunting': Chris Hemsworth reveals the personal reason behind his health journey to brothers Liam and Luke on Limitless

Chris Hemsworth is pushing the boundaries of health in his bone-chilling series Limitless.During Episode 2, in a quest to live better for longer, the actor was preparing to risk his life for an open water swim... 250-yards across the freezing Norwegian Arctic!Stream Limitless with Chris Hemsworth for free on 9Now.But there was more to his mission than simply testing the limits.Opening up to brothers Liam and Luke, Chris, 40, explained why he was training for the "hardest" feat of his life.Hear what he had to say in the video above."I don't know if it's any less comfortable, or you're just more familiar with being uncomfortable," Chris said of his "brutal" training methods.Throughout the episode Chris worked closely with sports scientist, Ross Edgley, along with a team of medical professionals to test the benefits of extreme temperature exposure.READ MORE: 'If I'm honest': Chris Hemsworth's heartbreaking admission on actingTo put things into perspective, the water is 2.78°C."There's doing things that test you, doing things that are hard, really pushing beyond the boundaries of what you think is possible," he continued.Chris, who shares three young children with wife and actress Elsa Pataky, opened up about why it was important he focus on his long-term goal.Hear what he had to say in the video below:"You want to get every opportunity possible to live a longer, healthier life. Not just living longer, but living longer and stronger, especially having kids," he said.READ MORE: One meal, six beers, 15 cups of coffee and 30 cigarettes a day: Why Sydney couple are quitting cold turkey"You want to be able to play with the grandchildren and still be active, and run down in the snow and jump in the ocean, you know?"While 'snow' and 'ocean' don't usually go together, this Hemsworth beach trip was certainly unlike any other.In just one day, Chris would be taking the plunge in the freezing Norwegian ocean to prove he can take control of his body's reaction."If I'm honest, it's a pretty daunting prospect," he added. But if there's one thing Chris can't resist, it's a surf. Only this beach, as you guessed it, is metres away from the snow.Luke and Liam admitted they were "not easily impressed" by their brother's surfing, but what happened next was certainly impressive:"It was pretty wild out there," Chris reflected. "That kind of cold is completely ridiculous and alien to anything I've ever done.EXCLUSIVE: Dr Nick Coatsworth reveals the biggest health concern for Aussie kids - and how parents can help"So, the idea of now going swimming without all of that gear and the wetsuits and so on has become a really intense, scary reality."To catch Chris' final swim, see Episode 2 of Limitless: With Chris Hemsworth, out now. The show continues next Monday after Do You Want To Live Forever?Stream Limitless with Chris Hemsworth for free on 9Now.FOLLOW US ON WHATSAPP HERE: Stay across all the latest news from your favourite shows via our WhatsApp channel. No comments, no algorithm and nobody can see your private details.