She was once known as part of the 90's party elite, hanging out in the Primrose Hill set with Kate Moss, Pearl Lowe and once-husband Jude Law.
But Sadie Frost says turning 50 sees her more content than when she was younger, and that she turns to exercise to boost her mood.
Speaking to the Telegraph, Frost said: “It’s funny that you get to this age that is symbolic, that looks old, but I just don’t [feel it].
“[...] But do you know something? I can do everything that I did in my 20s - but better. Everything. If you’re talking about running up a hill, or writing something that’s meaningful, engaging in something. I’m more mindful of other people. Everything is more complete.”
Discussing the postnatal depression she was admitted to hospital with in 2003, Frost - who divorced Jude Law, father of three of her four children, later that year - said she “veered off the rails” while coping with the fallout of such a difficult year.
She goes on to say despite the partying reputation of her friendship group, having four children during that time means she “can’t even remember” much of it, but credits exercise with keeping her on track.
“I’ve been pregnant four times. So that’s nine or 10 months a time, and then you’ve got all the breastfeeding. So that’s, what, six years of my life? All the sickness and the hormones. Up and down," she said.
“Six years of my life I was engulfed in motherhood and hormones and all kinds of heavy stuff. There are definitely a couple of years, just through being so frantic with motherhood, that I can’t even remember [...]
“I never lie in bed all day eating chocolate and watching daytime TV. I’ve always been one of those people whose inkling when they’re feeling a bit down is to get up and go somewhere inspiring, get to the gym.”
She added: “There are those times when you go out and it’s Fashion Week and I’m having a great time like everyone else, but I’m always back to my routine. That’s the thing that gets me back, the health and fitness.”
And she says she's so serene these days she even has a coping strategy for the London Underground - meditating.
“Even if you’re really crushed and standing and sweltering and uncomfortable, it’s a good exercise, to practise being at peace in a situation that maybe isn’t peaceful.”
The full interview can be found here.
Words: Amy Swales / Images: Rex Features