The disclosure is the latest in a series by the Argentinian pope about his personal life and human frailties.
He recently told of how he underwent analysis by a psychiatrist in the 1970s.
He said: "At a certain point, I felt the need to consult an analyst. For six months, I went to her house once a week to clarify a few things."
Francis added that "we say we are Christians, that we have a father, but we live like, I wouldn't say like animals, but like people who believe neither in God nor in man, without faith, and we also live doing evil. We live not in love but in hate, in competition, in the wars".
Francis handles his grueling routine as head of the Roman Catholic Church by going to bed early at around 9pm, then rising at 5am, and takes a siesta most afternoons, Vatican sources say.