Some of these have been mentioned already but here they are, these things make me be a bit better at programming (at least I think so)

• sleep, I love sleep and I think a good night's sleep can do wonders

• music, music theory which is a language in itself and playing an instrument which teaches hand-eye-coordination and also creates patterns in your head, but certainly teaches us that you need to practice a lot to achieve your goals, that it's hard for beginners but gets a bit easier with time

• solving puzzles and riddles, I've been a huge fan of puzzles from an early age, it is something that teaches us solving problems and creating strategies

• other types of games that are helpful are games where you have to find things in a picture or in an environment, this has trained me a bit on finding nasty bugs in my code or at least syntax errors

• googling: sometimes you find out something that is not really related to your problem, but you remember it nevertheless and later on it can help you with something else

• maths, yes, you read correctly, I'm not a big fan of maths either, but what you learn in maths is that there are certain procedures you're often repeating and that you're always building on your knowledge and expanding it, sometimes solving mathematical problems is fun too ;)

• getting fresh air - self explanatory

• listening to other people's life stories, this helps me generally in life, to know that I'm not the only one struggling with something and so on

And I probably could go on with a lot more things, but I think that's enough for now