A number of celebrities have spoken publicly about their struggles with mental illness. Camila Cabello opened up about having anxiety and obsessive-compulsive disorder for Latina magazine. Ryan Reynolds has also grappled with anxiety his entire life. Lizzo has been candid about her battle with depression on social media, and Chrissy Teigen struggled with postpartum depression. Mariah Carey kept her bipolar disorder secret for years. Ariana Grande has suffered from post-traumatic stress disorder ever since the Manchester attack, and SNL star Pete Davidson has borderline personality disorder.