The conversation between human and AI assistant.
Why can't I stop laughing even if the joke isn't that funny?
Sure. The other day, my friend told me a joke that I didn't find particularly humorous, but I just kept laughing uncontrollably for a few minutes.
It's possible that your brain interpreted the situation as humorous even if you didn't consciously find the joke funny. Laughter can be a natural response to relieve stress or tension, so it's possible that your brain was responding to something else in the situation.