Jeff Bridges can't decide whether to relax or work harder as he is getting older.

The 64-year-old actor worries his time is running out so thinks he needs to cram in as much as possible, but has a conflicting feeling that he doesn't want to end his days by doing ''homework''.

He said: ''I've got two conversations going on in my head. One says, 'Hey, you've got a lot of stuff you want to do, man. Now's the time, because you're gonna kick the bucket pretty soon.'

''The other says, 'Oh, Jeff, you want to make the rest of your life a giant homework assignment? Just relax, man. Just relax.' ''

The 'Giver' star insists getting old doesn't worry him too much.

He added: ''You inhale, you exhale, and you get on with it.''

And one benefit Jeff - who has daughters Isabelle, 32, Jessie, 31, and Hayley, 28, with wife Susan Geston - has found that comes as time passes by is how much better marriage life has got.

He said: ''What they don't tell you about marriage is that it just keeps getting better on all levels -- emotion, sex, intimacy. Intimacy is what we're all looking for. It's kind of a big high.''

The 'Big Lebowski' star also recalled his ''pretty great'' upbringing with his wonderful parents, actors Dorothy and Lloyd Bridges.

Speaking to the August/September issue of AARP The Magazine, he said: ''I had a pretty great childhood. [My mother] was kind of a spectacular mom.

''[My dad] had such tremendous fun with what he was doing, and the feeling was contagious.''