Coding is one of the most enjoyable things in life for me. There are times when a good coffee, nice music, and scala turn into hours of bliss. However, I just

Coding is one of the most enjoyable things in life for me. There are times when a good coffee, nice music, and scala turn into hours of bliss. However, I just don't think it's possible to operate in the mindset required for good software engineering for prolonged periods of time, day in and day out, without breaks. So I do other things to recharge. I am friends with a professional martial arts instructor. It's his favorite thing to do, but doing it ten hours a day 7 days a week isn't healthy for his body. So he surfs and reads books etc. too. Don't see why it would be any different for your mind.