Ever wondered how The Rock manages to stay so shirt-rippingly huge the whole time?
Well, Bryan Cranston has. And in The Late Late Show clip above, he manages to get to the bottom of it.
"I figured the easiest thing for me to do was to create a gym and make sure that it travels with me everywhere I go," says Dwayne Johnson, after explaining that he no longer uses public gyms.
It's a very big effort, but hey -- he's a very big guy.
