Henderson has made the World Cup squad on the back of the best season of his career.
"Duracell bunny, that's what he is," Gerrard told the Daily Mail. "He's got energy to burn. He's a great athlete. And he does the dirty work as well as the more attacking stuff.
"He's improved his all-round game to build on the fact that he's a great athlete - his short passing, his long passing, and he's getting his name on the score-sheet from time to time, setting a few up too.
"He's very grounded. He's in the gym every day, he doesn't drink; he wants to be a top professional."
For the big stories and the banter follow us on Twitter: @tribalfootball