The secret to aging is in the title of Dick Van Dyke’s memoir ‘Keep Moving’

When someone mentions Dick Van Dyke, the first image that pops to mind is probably the actor in motion: making pratfalls across the living room he shared with Mary Tyler Moore on “The Dick Van Dyke Show” or shuffling like a penguin in a candy-cane-striped blazer in “Mary Poppins.”

One of his greatest gifts as a performer has always been his ability to stretch his lanky body in ways that look graceful and funny.

In his new book, “Keep Moving,” Van Dyke says that gift — specifically, his ability to dance — has kept him young and still vigorous at nearly 90. (He’ll celebrate that milestone birthday in December.) WashingtonPost.com