— -- Rob Lowe really doesn't age.
"It's spooky," O'Brien said.
"I'm aging on the inside Conan," Lowe answered.
Then he divulged his secrets, joking he is drinking the blood of the undead.
"I take very good care of myself," he said. "I don't drink, I work out a lot. I've learned some tricks over the years."
Some tricks include finding ways other than alcohol to let "the wild man out."
"So, it's skiing, surfing and doing adrenaline stuff," Lowe added.
The "Wayne's World" star said he tried golf but he gave it up because he killed the Iowa state bird in flight.
"Boink in the air, dead, into the [sand] trap," he said. "It's not like Randy Johnson the pitcher who killed a seagull [with a baseball, by accident], it's a finch [which is tiny]."
Lowe said the odds of that happening are 1 in 747 million, so "I'm quitting after that, that's a sign -- a real birdie!"