The legendary singer bravely spoke about her mental health struggles.
As reported by Daily Mail, Mariah Carey is writing a book after she opened up about her battle with bipolar II disorder.
Carey's rep confirmed the project to Page Six, which reported that the 48-year-old singer has been 'looking inward' since the passings of her companions Whitney Houston and Prince.
The We Belong Together singer hit the headlines as of late after she disclosed her battle with bipolar II disorder in public.
Carey, whose 1994 Merry Christmas album has sold more than 15 million copies worldwide, was diagnosed in 2001, but only recently shared the news with her fans and from the world.
According to the source, the pop star felt completely at ease after announcing her diagnosis.
"There were very few people in her circle who knew [she was bipolar]. It was a very personal decision for her. She's been on and off medication since she was diagnosed," the source told Page Six.
In an interview with People, Carey candidly talked about her diagnosis, saying that she 'live in denial' and 'constant fear of being exposed' when she was diagnosed with bipolar II disorder.
The Grammy award winner was taken to the hospital for a physical and mental breakdown.
"I didn’t want to believe it... Until recently I lived in denial and isolation and in constant fear someone would expose me. It was too heavy a burden to carry and I simply couldn’t do that anymore. I sought and received treatment," she said.
Carey, who shot to fame with the release of Vision of Love from her eponymous debut album, added that her treatment came after the most difficult moment of her life.
Bipolar II is more common in women and is quite hard to diagnose. This condition is characterized by uncontrollable mood swings.