Actors, I don't think, ever really grow up. I'm hoping that that rejuvenating process applies to me, too. It has so far. I've been very lucky.
When language is treated beautifully and interestingly, it can feel good for the body: It's nourishing; it's rejuvenating.
For the last third of life there remains only work. It alone is always stimulating, rejuvenating, exciting and satisfying.
Shutting off the thought process is not rejuvenating; the mind is like a car battery - it recharges by running.
It never gets old. Working with somebody like Kevin Hart is rejuvenating in a lot of ways. He's such a pro. He's so good.