Jodie Foster goes into therapy every time she finishes a movie project because she becomes a "total couch potato" when the job is done.
The Silence of The Lambs star, 63, revealed she throws herself completely into her work and struggles to readjust to normal life when the shoot comes to an end so she does "nothing" until she "gets bored" and then starts therapy sessions.
She told the Wall Street Journal: "I work like a dog. I’m obsessed. And then I just want to go to sleep ... I feel lost if I don’t have a routine. I’m a disciplined person. When I’m making a movie, I can’t stay on my routine.
"I have four months of working 15 hours a day, and all I do is sleep through the weekend. I don’t talk to anyone. I don’t know what’s happening in the news.
"I just have to look at the character and what I’m headed toward."
She added: "When the movie’s over, I’m like: 'Thank God that’s over.' I go back to sleep. I do nothing. I become a total couch potato. I get really bored. Then I go into therapy, and it all starts all over again. It’s like a one-year cycle."
In the interview, Foster went on to reveal she's obsessed with naps, adding: "I admit I like taking naps. Sleeping is necessary, but a nap is just perfection.
"The perfect timing for a nap is 45 minutes or an hour, but two hours is pretty damn good."
It comes after Foster - began her career as a child actor -recently admitted she's doing the "best work" of her career now she's in her sixties.
The veteran film star told Variety: "I think I’m doing the best work of my life. And the dirty little secret is that I’ve never worked less in terms of my energy output. I just do what I think, and then I drink a coffee."
She explained she wanted to "challenge Hollywood wisdom" during her 20s but her mom proved to be a really healthy influence on her career and the choices she made.
The Oscar-winner said: "I was trusting a creative instinct, and she was giving me the Hollywood wisdom. I want to challenge Hollywood wisdom. She was guided by fear and convention. It was really clarifying, at 27, to say, I am not going to listen to your fears."
