fun theory

I think making something fun can change behavior because i pay attention more when watching and studying off a funny interesting video. I zone out while trying to study from a book and it doesn't end up helping me. If i watch a video about whales, lets say, that gets me interested i ill learn from it. but if i read about it for hours on time i will get bored and lose interest. Or while exercising, if i am working out i would rather listen to music than nothing. It makes me pump up more and have more fun.