Los Angeles (Daily Mail): It’s so trendy nowadays to express our feelings that it sometimes seems there’s nothing we can’t talk about. Except there’s still one area many people find difficult to speak about - mental health. Each year, one in four of us will experience some kind of mental health problem, from more frequently experienced depression and anxiety to the less common schizophrenia and bipolar disorder. But such is the stigma, many feel too afraid to tell anyone or even seek medical help. They may feel isolated, unable to do everyday things such as getting out of bed and have trouble finding or keeping jobs. Younger people’s problems meanwhile may be dismissed as ‘just puberty’ or ‘attention seeking’ but one in ten will experience mental health issues. So leading charities Mind and Rethink Mental Illness have teamed up to run an anti-stigma campaign called Time to Change. This Thursday they’re holding Time To Talk Day to get the nation talking about mental health to help remove the stigma. Here 12 celebrities discuss their own mental health problems and reveal how talking about it has helped them.

Cara Delevigne
Beautiful and successful model Cara, 23, is surely proof that anyone can have depression. At 15, it was so severe she wanted to take her own life but she sought help and now finds writing, yoga and talking about it helps her cope. ‘Communicating is the most important thing,’ she says. ‘Mental illness and depression is nothing to be ashamed of. I wish at that time I had realised other people go through it, that I could talk to other people, that you are not alone. ‘It’s about finding people around you who have your best interests at heart. It’s about finding people who care about you, and support you. And I’ve now been able to become a support for other people, as well. It’s a lovely circle.’

Kristen Stewart
Growing up under the public spotlight - she starred in Panic Room with Jodie Foster aged 11 - made Twilight actress Kristen constantly anxious during her teens. ‘I was kind of a control freak,’ says the 25-year-old. ‘If I didn’t know how something was going to turn out, I would make myself ill, or just be really uptight or inhibited in a way that was really debilitating. I’ve lived hard for such a young person, and I’ve done that to myself - but I’ve come out the other end not hardened but strong. Now I think it’s a gift to feel things. But I wouldn’t trade it, to be honest. I’m really proud that I am able to move forward and not fall into every mental crater.’

Emma Stone
Oscar nominated Emma, 27, has revealed that before going into acting, she suffered from intense panic attacks and that only talking to her mother would help. ‘It was really bad,’ she said. ‘The first time I had a panic attack I was sitting in my friend’s house, and I thought the house was burning down. I called my mom and she brought me home, and for the next three years it [panic attacks] just would not stop. I would ask my mom to tell me exactly how the day was going to be, then ask again 30 seconds later. I just needed to know that no one was going to die and nothing was going to change.’

J K Rowling
In the years before her Harry Potter books became a worldwide phenomenon, divorced and penniless single mother JK Rowling found herself in the grip of depression. ‘The thing that made me go for help was probably my daughter,’ says the 50-year-old. ‘I thought, this isn’t right, this can’t be right, she cannot grow up with me in this state.’ She now speaks candidly about those years to show there should be no stigma surrounding talking about mental illness. ‘I have never been remotely ashamed of having been depressed,’ she says. ‘Never. What’s there to be ashamed of? I went through a really tough time and I am quite proud that I got out of that.’

Demi Lovato
As a teenager, the 23-year-old singer and actress self-harmed and struggled with eating disorders, eventually being diagnosed with bipolar disorder when her family insisted she get treatment. ‘It’s not something that anyone should be ashamed of,’ she says. ‘The more people talk about it, the more people can come out and get the help they need. I didn’t understand why I was going through what I was when I was dealing with all of this, and I realised I could share my story and help others. Why not? Why not share my story because some people need to hear it? I go to support groups for addiction. I just make sure I reach out to people.’

Miley Cyrus
Depression once led singer Miley, 23, to lock herself in her bedroom forcing her worried father Billy Ray Cyrus to knock down the door. Nowadays she’s happy to talk about her mental health issues in order to help her fans. She says: ‘They know that I’ve struggled with depression, and that helped them get over theirs. That gives me a big purpose - a reason to wake up in the morning that’s bigger than putting on my feathers and my little outfits.’