Mental health doesn't have the stigma it once had, but being open about one's mental health problems still isn't easy, and celebrities are no exception.
In fact, if you do a little research, you'll come across various interviews where stars have candidly revealed the extent of their mental health issues, and though it may seem like their lives are awash with perfection, mental health doesn't discriminate, no matter how rich or poor you are.
To prove this, and to give anyone dealing with a mental health problem the courage to see a doctor, we've featured the stories of 10 well-known stars who have sought medical attention for a mental health issue.
1. Lady Gaga
It's hard to imagine someone as self-confident and world-renowned as Lady Gaga would have a mental illness, but as we've already stated, mental health issues aren't correlated with fame and fortune.
In some cases, the demands and rigours of being in the spotlight can be enough to drive even the most confident, free-spirited of artists into a state of anxiety and panic, as Gaga alluded to when revealing to fans in an open letter that she had undergone treatment for PTSD (Post-Traumatic Stress Disorder).
"I have wrestled for some time about when, how and if I should reveal my diagnosis of Post Traumatic Stress Disorder (PTSD). After five years of searching for the answers to my chronic pain and the change I have felt in my brain, I am finally well enough to tell you.
"There is a lot of shame attached to mental illness, but it’s important that you know that there is hope and a chance for recovery."
2. Selena Gomez
As well as going to rehab for long-standing problems with narcotics, Gomez has also had a tough time with her mental health, and this was heightened whenever she went on tour. A world star, the immense expectations Gomez felt, as well as constantly feeling as though she wasn't good enough, eventually led to numerous panic attacks and bouts of depression, which she believed were a side-effect of her lupus diagnosis, an autoimmune disease that causes the immune system to attack healthy tissues by mistaking them with bad ones.
Releasing a statement shortly after the diagnosis, Gomez said, "As many of you know, around a year ago I revealed that I have lupus, an illness that can affect people in different ways.
"I've discovered that anxiety, panic attacks and depression can be side effects of lupus, which can present their own challenges.
"I want to be proactive and focus on maintaining my health and happiness and have decided that the best way forward is to take some time off."
3. Cara Delevingne
After being spotted by the same modelling scout who plucked Kate Moss from obscurity, Delevingne quickly became one of the fashion industry's most in-demand models, and after transitioning to acting with relative ease, it appeared Delevigne had it all. But what people didn't realize was that she was a longtime sufferer of depression.
Talking about her experiences, which have seen the star take a break from the modelling world, she said, "I suffer from depression and was a model during a particularly rough patch of self-hatred.
"I am so lucky for the work I get to do, but I used to work to try and escape and just ended up completely exhausting myself. I am focusing on filming and trying to learn how to not pick apart my every flaw. I am really good at that."
The star also touched upon mental health in her recently released debut novel, Mirror, Mirror.
4. Zayn Malik
After leaving the world-conquering boy band One Direction, Zayn Malik opened up about his mental health struggles and revealed that his life was so regimented he had no control over how he lived his life, and decided to eat nothing for long periods because he felt he was reclaiming some of his independence that had been lost touring with the world's most in-demand band.
But Zayn's issues still plagued him when he left One Direction as he cancelled most of his live performances as a solo artist during the run-up to his debut solo album ' Mind of Mine; because of "crippling anxiety."
Revealing the full extent of his problems in an in-depth interview with The Sunday Times, he said, "Every area of my life was so regimented and controlled it was the one area where I could say, ‘No, I’m not eating that’. Once I got over the control, the eating just came back into place, super naturally.
"I came back to the UK and spent some time with my mum and got some TLC, and she cooked me food, and I got back in touch, mentally, with a lot of the things I’d lost."
5. Demi Lovato
As part of her courageous work with the mental health group, Be Vocal, Lovato spoke openly about her bipolar diagnosis.
"Getting a diagnosis was kind of a relief," she admitted. "It helped me start to make sense of the harmful things I was doing to cope with what I was experiencing. Now I had no choice but to move forward and learn how to live with it, so I worked with my health care professional and tried different treatment plans until I found what works for me.
"Living well with bipolar disorder is possible, but it takes patience, it takes work, and it is an ongoing process. The reality is that you’re not a car that goes into a shop and gets fixed right away. Everyone’s process and treatment plan may be different. I am so grateful for my life today, and I want to protect it. It isn’t always easy to take positive steps each day, but I know I have to in order to stay healthy. If you are struggling today with a mental health condition, you may not be able to see it as clearly right away but please don’t give up – things can get better."
Well said, Demi!
6. Ryan Reynolds
At first glance, it would appear Ryan Reynolds has it all. The fame and fortune. Model looks, a Hollywood marriage to Blake Lively. Two wonderful children. Yet he's admitted in the past that his lifelong problems with anxiety haven't made his life easy.
Speaking to Variety, the star said, "Our father was tough. He wasn’t easy on anyone. And he wasn’t easy on himself. I think the anxiety might have started there, trying to find ways to control others by trying to control myself. At the time, I never recognised that. I was just a twitchy kid.
"[When filming Deadpool] I never, ever slept. Or I was sleeping at a perfect right angle – just sitting straight, constantly working at the same time. By the time we were in post [production], we’d been to Comic-Con, and people went crazy for it. The expectations were eating me alive. Blake helped me through that. I’m lucky to have her around just to keep me sane."
7. Kid Cudi
Mental health has a way of manifesting itself into a spiral of negative thoughts that can quickly endanger sufferers' lives, a reality the American rapper Kid Cudi knew all too well when he checked himself into rehab after being unable to rid himself of suicidal thoughts.
Sharing his heartbreaking experience with his Facebook fans, the hitmaker wrote, "It's been difficult for me to find the words to what I'm about to share with you because I feel ashamed. Ashamed to be a leader and hero to so many while admitting I've been living a lie," he wrote, "It took me a while to get to this place of commitment, but it is something I have to do for myself, my family, my best friend/daughter and all of you, my fans.
"Yesterday I checked myself into rehab for depression and suicidal urges. I am not at peace. I haven't been since you've known me. If I didn't come here, I would've done something to myself. I simply am a damaged human swimming in a pool of emotions every day of my life.
"Theres a raging violent storm inside of my heart at all times. Idk (I don't know) what peace feels like. Idk how to relax. My anxiety and depression have ruled my life for as long as I can remember and I never leave the house because of it. "
8. Ellie Goulding
After suffering a series of anxiety and panic attacks, the "Burn" star underwent cognitive behavioural therapy (CBT) to regain control of her mental well-being, despite revealing to Flare magazine that she initially had doubts about seeking help.
“I was skeptical at first because I’d never had therapy, but not being able to leave the house was so debilitating," Goulding said. "And this was when my career was really taking off. My surroundings would trigger a panic attack, so I couldn’t go to the studio unless I was lying down in the car with a pillow over my face. I used to beat myself up about it.
“There were a couple of times after I released ‘Delirium’ when I was doing promo and thought, 'Oh god, it’s coming back, it’s coming back,' but it didn’t. I think my body has become quite good at controlling anxiety."
9. Prince Harry
After losing his mother at the tender age of 12 following a fatal car crash in Paris, the world wept, but it would be Harry and William who would carry the brunt of the pain, and for almost 17 years, Harry decided to block the incident out of his mind and never speak about it.
"I can safely say that losing my mom at the age of 12 and therefore shutting down all of my emotions for the last 20 years has had quite a serious effect on not only my personal life but also my work as well," the royal revealed in an interview with the Daily Telegraph.
However, 17 years later, Harry finally sought help, and after productive counselling sessions, he admitted that he has finally been able to move on with his life. "I've now been able to take my work seriously, and take my private life seriously, as well, and be able to put blood, sweat and tears into the things that really make a difference."
10. Emma Stone
In an interesting interview with The Late Show host Stephen Colbert, the Oscar-winning actress revealed that her history with anxiety goes back to when she was just 9-years-old.
"I was a very, very, very anxious child and I had a lot of panic attacks,” the La La Land said. “I benefitted in a big way from therapy." The actress even showed Colbert a picture she drew in a therapy class when she was 9-years-old.
"This is me, I guess. It’s really great artistry with my shoes, and then this is anxiety here,” she explained. “It’s a little green monster that looks a little bit, as someone backstage said, a uterus with some ovaries. But I didn’t mean for it to be hormonally related in any way. Like I said, I was 9."
The 28-year-old also revealed in an interview with Vogue that her anxiety was so crippling the thought of even leaving the house affected her. “I didn’t want to go to my friends’ houses or hang out with anybody, and nobody really understood."
Thankfully, the actress no longer suffers from panic attacks and has a sounder state of mind. However, she admitted that anxiety still plays a role in her life. “[Acting] helped me so much, improv helped me so much,” she told Colbert. “I mean, I still have anxiety to this day, not panic attacks — knock on wood."