Although play for many animals becomes a rarity with age, play can remain commonplace for even mature dogs. Numerous factors influence a dog’s continued desire to play as he ages. Ample play opportunities during puppyhood increase play behavior in adult dogs. A stimulating environment that includes toys and food puzzles, as well as frequent positive interactions with humans and other dogs and regular outings, are more likely to result in a playful dog as well. The more a dog is rewarded for playing, the more likely play will continue past the puppy stage. Even if your dog’s exuberance for play remains strong as he ages, his body may slow down and be unable to keep up the pace. For this reason, play opportunities for senior dogs need to be tailored to accommodate their aging bodies. Older dogs may have additional health issues that restrict play. Arthritis pain can make play painful, while brain aging can decrease a dog’s ability to respond to his environment.