In addition to writing about her childhood in Brazil and her marriage to Tom Brady in the book, she also opens up about her experience with panic attacks and suicidal thoughts, things she's never publicly discussed before.
Bündchen says that she had her first panic attack in 2003, just as her modeling career was taking off.
Eventually, her panic attacks started happening at home, too, which was when she began experiencing suicidal ideation.
On the advice of a specialist, Bündchen took Xanax, but "the thought of being dependent on something felt, in my mind, even worse, because I was like, 'What if I lose that [pill]? Then what? Am I going to die?'" she said.
Years later, Bündchen is sharing her story because "I felt like maybe it was time to share some of my vulnerabilities, and it made me realize, everything I’ve lived through, I would never change, because I think I am who I am because of those experiences."