Florence Pugh has previously spoken out about a rare condition that she was diagnosed with as a child which caused her to relocate from England to Spain.
Not all health issues are clear and obvious so it can come as quite a surprise when celebrities reveal a previously unknown diagnosis or health battle.
And while appearing on Running Wild with Bear Grylls in 2022, Pugh decided to get candid about her own health journey.
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The pair travelled to Costa Rica and started their journey by jumping out of a helicopter like something straight out of an action flick.
During the 48-hour trip they also navigated rivers, rapids and waterfalls but while out the pair also touched on more personal topics.
Pugh explained that she had a rare medical condition and upon advice from doctors she and her family moved from England to Spain.
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The actor spoke about her family's decision to move countries when Pugh was between the ages of three and six based on the medical advice.
She said: "We were in Spain because I have a breathing issue, and when I was younger they kind of just advised that a hotter climate would be better.
"I have asthma and I have this thing called tracheomalacia as well. And so from a young age, I've just had a different breathing system.
"Now as an adult, unless I get ill, it doesn't really affect me as intensely as it did when I was younger."
What is Tracheomalacia?
Tracheomalacia is a rare condition which can cause the walls of the windpipe to collapse and block a person's airway, making it very difficult for them to breathe.
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Luckily it sounds as though the condition no longer troubles Pugh as much as it did when she was younger.
Pugh isn't the only Hollywood star to speak openly about a serious medical condition on Running Wild with Bear Grylls, as Ashton Kutcher also opened up about a major medical scare.
He revealed that he'd suffered from a rare form of vasculitis, a condition which causes the walls of blood vessels to thicken and reduces or even cuts off the supply of blood to some parts of the body.
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It's a potentially life threatening condition that left the actor temporarily unable to see, hear or walk and Kutcher believes himself 'lucky to be alive' following his experiences with it.
The long-running series follows Grylls as he takes a celebrity through harsh or hostile environments as they reveal personal truths about themselves.
A whole host of famous guests have appeared on the show, including former US president Barack Obama.
Topics: Celebrity, Film and TV, Black Widow
Gerrard Kaonga