Meet the brave stars helping to break down taboos by going public with their mental health struggles.

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Mental illness used to be something of a taboo in the showbiz world, but thankfully today’s celebrities have no qualms about discussing their own personal mental health battles. And in sharing their stories of struggle and success, they’re letting sufferers everywhere know that they’re not alone. Here’s a look at 20 inspirational stars who have bravely opened up about everything from anxiety to ADHD.

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20. Adam Levine – ADHD

Adam Levine is a vocal supporter of the Own It campaign, which is designed to help adults control their ADHD; the singer himself has been battling the condition since his teens. But while the Maroon 5 frontman may have penned too many hit singles to mention, Levine has said that his ADHD means that he still struggles to focus in the studio.

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19. Olivia Munn – Social anxiety

Olivia Munn’s social anxiety is so severe that she often resorts to trichotillomania – pulling out her own eyelashes – as a means of coping. The Newsroom actress has credited exercise, her quarterback partner Aaron Rodgers and her dog Chance for helping her manage on a daily basis.

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18. Wil Wheaton – Generalized anxiety disorder and depression

Wil Wheaton suffered from generalized anxiety disorder for almost 20 years before he received an official diagnosis in 2009. The Big Bang Theory star finally saw a doctor after experiencing a panic attack at an airport, but thanks to a mixture of therapy and medication the actor and writer has managed to get the condition under control.

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17. Leonardo DiCaprio – OCD

As well as portraying Howard Hughes, one of the world’s most famous OCD sufferers in 2004’s The Aviator, Leonardo DiCaprio has also had to deal with the condition in his private life. For example, the Oscar winner has said that he regularly feels the need to pass through entrances more than once. In fact DiCaprio has even admitted that during the filming of The Aviator he got a little too into his character and his mindset, and his own OCD started getting out of control as a result.

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16. David Beckham – OCD

DiCaprio isn’t the only A-lister to exhibit obsessive-compulsive behavior, either. Soccer hero David Beckham has claimed that the disorder haunts his life, as he fights the compulsion to count the number of cola cans in his fridge or perfectly align his furniture. In fact, Beckham has said that he has to purchase precisely 20 packets of noodles on every grocery trip – any more or less won’t do.

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15. Hayden Panettiere – Postpartum depression

Actress Hayden Panettiere bravely admitted to suffering from postpartum depression after giving birth to her daughter in 2014. Indeed, the Nashville star had to temporarily leave the country music drama in order to seek treatment for the illness, and she has since spoken out about the need to break the taboo and bring the condition into public discussion.

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14. Elton John – Bulimia

Elton John found himself desperately battling an eating disorder during during his drug-addled period in the ’80s. The music legend opened up about his struggles in a 2010 interview with Piers Morgan, revealing: “I’d binge and have like three bacon sandwiches, a pot of ice cream and then I’d throw it up, because I became bulimic and then go and do the whole thing all over again.”

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13. Brittany Snow – Anorexia, exercise bulimia, depression and body dysmorphia

Brittany Snow struggled with numerous mental health problems during her late teens. The Pitch Perfect star was diagnosed with depression, anorexia, body dysmorphia and exercise bulimia – the latter being a condition in which the sufferer exercises compulsively rather than making themselves sick. Fortunately, at the age of 19 the actress was finally admitted to a rehab facility for the treatment she needed.

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12. Jared Padalecki – Depression

Jared Padalecki was diagnosed with clinical depression during his mid-twenties, and the Supernatural and Gilmore Girls star has been outspoken about his struggles ever since. He had these words of inspiration for fellow sufferers during an interview with Variety in 2015: “There’s no shame in having to fight every day, but fighting every day, and presumably, if you’re still alive to hear these words or read this interview, then you are winning your war.”

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11. Jean-Claude Van Damme – Bipolar disorder

In 2011 action hero Jean-Claude Van Damme shared details of his struggle with bipolar disorder during an appearance on reality TV series Behind Closed Doors. “When I was young, I was suffering those swing moods,” he explained. “In the morning, the sky was blue going to school, and to me, the sky was black.”

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10. Ellie Goulding – Anxiety

British pop singer Ellie Goulding began experiencing severe panic attacks after her sudden rise to fame; in a 2014 interview with Cosmopolitan the star even revealed how, on one occasion, she even thought she was dying during one particularly severe attack. Thankfully, Goulding subsequently underwent cognitive behavioral therapy to help overcome the problem, and with the proper medication she now has it under control.

Zayn Malik — Image: Kevin Winter/Getty Images

9. Zayn Malik – Anxiety

Goulding in fact offered her encouragement to Zayn Malik in June 2016, after his own anxiety disorder forced him to cancel a major solo performance at London’s Wembley Stadium. The ex-One Direction star had been struggling to get on top of the condition in the months before the scheduled show and, unfortunately, had found that his anxiety had become so overwhelming that he was unable to make it on stage.

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8. Robert Pattinson – Depression, body dysmorphia and anxiety

Robert Pattinson caused millions of teenage hearts to flutter during his time in the Twilight franchise. In 2013, however, the pin-up revealed that life as a A-list hunk isn’t all it’s cracked up to be. In particular, Pattinson actually struggles with body dysmorphia, as well as depression and anxiety – particularly before a major Hollywood appearance.

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7. Christina Ricci – Anorexia

Actress Christina Ricci has thankfully overcome the eating disorder she developed in her teens after watching a particular film. In 2004 the Casper star told The Guardian, “At the time that I was starting to diet and stuff, I saw this TV movie, and I thought, ‘Ooh – anorexia. I could probably do that.’”

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6. Demi Lovato – Bipolar disorder, bulimia and self-harm

Few stars have been as open about their battles with mental illness as Demi Lovato. The singer/actress filmed an MTV documentary in 2012 that detailed her attempts to recover from the depression, self-harm and bulimia that had plagued her teens, as well as her subsequent attempt to deal with her bipolar diagnosis.

Lena Dunham — Image: Jemal Countess/Getty Images

5. Lena Dunham – Anxiety, OCD and depression

Lena Dunham has also extolled the virtues of keeping fit when it comes to maintaining mental health. The actress and writer, whose character in Girls also suffers from anxiety and OCD, shared some of her coping methods in an Instagram post in April 2015. “To those struggling with anxiety, OCD, depression: I know it’s mad annoying when people tell you to exercise,” she wrote, “and it took me about 16 medicated years to listen. I’m glad I did. It ain’t about the ass, it’s about the brain.”

Carrie Fisher — Image: Robin Marchant/Getty Images for Tribeca Film Festival

4. Carrie Fisher – Bipolar disorder

Actress Carrie Fisher has often discussed how her bipolar disorder affects her behavior during her most manic spells. In 2015, for example, she bravely admitted, “Sometimes you didn’t want to be that person. You didn’t want to hold the dinner party hostage. And I didn’t have a choice. I’d keep people on the phone for eight hours.”

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3. John Green – OCD, anxiety and depression

Popular author John Green has admitted to using therapy and various coping mechanisms to deal with the anxiety and depression he has been battling for years. The writer of The Fault in Our Stars, moreover, has also taken to YouTube to discuss his struggles with OCD.

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2. Troian Bellisario – Self-harm and anorexia

Pretty Little Liars’ Troian Bellisario developed anorexia and a self-harming problem in her teens. In 2014 she explained its origins to The Mirror, saying, “I was the youngest daughter, the perfect little girl. My school was a very intense college prep school. So it was about wanting to please my father and mother and wanting to be perfect to everybody.”

Jon Hamm — Image: ADRIAN SANCHEZ-GONZALEZ/AFP/Getty Images

1. Jon Hamm – Depression

Mad Men leading man Jon Hamm became severely depressed in his early twenties after his father passed away. The actor, who has admitted that he felt suicidal at the time, has since credited a combination of antidepressants and therapy for helping him pull through.