Bebe Rehxa Opens Up About Being Bipolar

According to CNN, Grammy-nominated singer Bebe Rexha has revealed that she's bipolar. The 29-year-old shared the news through a series of tweets. The National Institute of Mental Health defines bipolar disorder as "a brain disorder that causes unusual shifts in mood, energy, activity levels, and the ability to carry out day-to-day tasks." In her tweets, Rexha wrote, "For the longest time, I didn't understand why I felt so sick...now I know why.