The good news this summer is, it's never too late to get into shape.
The messenger is Milton Berle, who just turned 84 and has been named special adviser to Arnold Schwarzenegger, chairman of the president's Council on Physical Fitness and Sports.
Mr. Berle will appear in a public service television announcement, riding a bike and hitting a speed bag to promote exercise for older adults.
Mr. Berle said through a spokesman that his doctor tells him he has the body of a 40-year-old. He said that by the 21st century people will live to 120 "if they exercise, watch their diet and stay away from stress."
"Sex at 84 is terrific, especially the one in the winter," he said.
To keep fit Mr. Berle walks a lot, rides a stationary bicycle, shadowboxes and punches a heavy bag.
He lives in Los Angeles and is head of programming for Main Street Television, a low-range broadcast network based in Dallas.
His book, "The New Adventures of Milton Berle's Private Joke File," is to be published this fall by William Morrow, and he is working on a musical for Broadway, "Milton and Me," and on a screenplay, tentatively titled "Grab Bag."