Joe Wicks has opened up on how his father's addiction to heroin changed the course of his life as it meant he steered clear of drugs.
The 33-year-old shared the insight into his childhood and his dad's struggles while appearing on BBC Radio 4's Desert Island Discs.
“Because of my dad’s life, I didn’t go near it. I was scared of it and I got into exercise and fitness and so his mistake changed my life,” he told host Lauren Laverne.
“I just don’t regret anything I’ve gone through or anything I have been through with my mum and dad, I’m just proud of who I am.”
The father-of-two added that despite the difficult circumstances he was not unhappy as a child and just "cracked on" with things.
He shared his father was able to stay clean from drugs with help from Narcotics Anonymous.
Wicks went on: "He’s had times when he’s relapsed but today he is clean and that’s the most important thing, but when I was a teenager I found it difficult.
“I didn’t understand, I was angry but now as an adult I understand. I have got more empathy.”
'The Body Coach' is a parent to two young children himself, Marley and Indie, who he shares with wife Rosie Jones.
He has become a global hit with his live streamed weekday workouts for school children, but Wicks recently revealed he turned down an offer from Channel 4 to air the sessions on the channel. He also shared that he'd been asked by the BBC to sign a contract.
Wicks has previously pledged that all advertising revenue earned through the videos would be going towards NHS charities.