Our girl is 16 and she has arthritis and some sinus/breathing issues.
She’s been doing laser treatments for arthritis and it’s been working very well. The other day she came up to me and meowed to indicate she wanted to play, then she ran down the stairs after me and she went full out for like 20 minutes, just playing like she was 10 years younger.
I stopped to text my wife a picture and she (the cat) yowled at me until I went back to playing.
It was the most fulfilling play session, it’s been impossible to get her to go after toys and she’s been so lethargic and guarded for a long time.