ORLANDO, Fla. — Living life to the fullest can be seen in a lot of different ways. For 91-year-old Orlando resident Joe Galvin, it means staying in the game.

He's living by his mantra to just keep moving — but after nearly half a century, Joe is hanging up the whistle.

Joe has moved around a lot for different jobs, from Illinois to Iowa to Virginia and Florida, but one thing has stayed constant: refereeing on the side for the past 47 years.

"You gotta keep moving like I told you on the phone, if you dont move it’ll put you in the ground," laughed Galvin. "You know you could feel 91 at 21 — and some people do, but when you get to be older, it's just a number."

Although basketball has been his main sport to work, he has also been involved with football, baseball, and softball. He started as a referee in 1975 when girls' basketball in Iowa was just three-on-three, and he has witnessed many changes in the sport since then.

"Not only that you have to keep up the rules, so you get to work physically and mentally," said Galvin.

During basketball season, Joe typically works 3 to 5 games per week while running up and down the court.

At 91, he believes it's time to step back as "kids are getting bigger and faster, [and] I'm getting little and slower." Joe was planning to retire last year, but he decided to work one more year when he learned there weren't many referees available.

Despite his love for the game, Joe knows it's time to move on and retire for good. He joked that this isn't like Tom Brady, and this is the last year. Joe has a great passion for life and helping young people, and he believes that by showing his love for the game, he can serve as a model for others.

"I love the game, and I like helping young people. I think that I can be a model by saying hey, it's a game, love the game," said Galvin.