Tyson Fury has admitted he went to sleep wishing he "would not wake up anymore" during his battle with depression.
Speaking to BBC Sport, the former WBA-IBF-WBO world heavyweight champion, opened up on his depression and subsequently drug problem ahead of his return to boxing after over two years out of action.
"I woke up every day wishing I would not wake up any more," Fury said. "But I am living proof anyone can come back from the brink.
"There is a lot of people out there suffering with mental health problems who think all their days will be grey, but life can improve again and you will start to enjoy the little things again.
"I could not pinpoint what made me depressed," said Fury, reflecting on those times. "I was rich, successful, young, healthy, had a family, fame -- everything a man could dream of -- but I was still depressed.
"To subside that depression, other things happened."
Fury (25-0, 18KOs) returns to the sport when he takes on Safer Seferi in Manchester on June 9 having "hated boxing" during his mental health problems, but he insists that he has fallen back in love with boxing ahead of his comeback.
"I needed the rest. I felt tired of boxing, drained. I needed to be rejuvenated; 100 percent the break benefited me.
"Boxing is like a marriage -- you have to work at it. You do fall in and out of love.
"But I have spiced it back up again, bought her some sexy lingerie and we are back at it, better than ever."