The 44-year-old 'Blue Jasmine' actress said her father's death left her paranoid that her partner Andrew Upton, with whom she has sons Dashiell, 11, Roman, nine and five-year-old Ignatius, would succumb to the same fate, reported Contactmusic.
"I lost my father young. The earliest memory I have is seeing him in bed when I was 18 months old - I later learned he was recuperating from his first heart attack at 32. He died when he was 40 (of a heart attack), but I don't think I really quantified the consequences for me until much later, when my husband reached 40," Blanchett said.
The screen beauty realised she had a pessimistic nature when her first reaction upon winning an Oscar for Best Supporting Actress in Martin Scorsese's 'The Aviator' in 2005 was to panic that her career had peaked.
"I can be a real pessimist. You know that when you win an Oscar and you walk offstage and your first thought is, 'Oh God, I've peaked," she said.