I wonder if it has to do with the mental burden we start to accumulate in transitioning to adulthood. Much easier to hyperfocus on books when we don't have the weight of finances, careers, complex relationships, etc.
I realized that and did something about it, but I didn’t allow myself to enjoy a book for around 10 years. Not sure if that resonates with you (I hope not!) but I figured I’d mention it just in case. I was totally unaware of what I was doing at the time.
I found a hack into keeping up with my reading, which is to use a kindle with wireless page turner attached to a mechanical arm.
I’m able to fall asleep reading like I used to and slowly make my way through extended science fiction. The effort to read is very low, the last page always set.
I don’t often stay up way past bedtime from reading anymore, but it did happen this year for me reading Symphony of Secrets by Brendan Slocumb.
I’ve drilled it into my head that if I’m not reading or focused on quality sleep, everything else will suffer. It’s been true for decades and I’ve been disappointed by finding it out again enough times that I generally believe it now.
No phone, no late night computer/work, just reading if I’m not asleep and otherwise sleep. It’s so important.
I don’t claim to be a particularly intelligent person by any means. This change has done wonders for being less stupid, however. Reading really does stimulate your brain in such positive ways. You probably won’t notice when you’ve stopped for a while and that’s a serious shame; we’d probably all read more if it was more obvious how much better we are when we do it. And of course the sleep hygiene plays a huge role too.
Occasionally I fall off the wagon for a week or two due to family stuff. To be honest, my wife hates that I read at night, and that’s friction as well. When your brain has a tendency to work against you though, you really do need to take action to build routines that keep you sane and on a good trajectory. My wife would hate it more if I allowed myself to sleep less and indulge in other things in the evening, so this is a lesser evil that keeps my cup full so to speak and helps me stay on track.
ADHD is all about the pit of success and elimination of problematic systems or temptations, in my experience. Make it hard to fail.
Edit: I should add that while it seems boring or impossible with limited time, the routine encourages better sleep (at least in my case) and as a result, better results of my efforts through the subsequent days and weeks and so on. I end up with more time to do stuff I like because I’m not making as many poor choices due to a lack of sleep, corresponding poorer diet, decreased productivity, etc.
I struggled with this part for most of my life and didn’t truly believe it would make a difference until it did. I’m a much better person when I let myself sleep. My brain yells at me not to most nights, but it I can cut through that I will have a better following day without fail. That effect compounds far better than I would have guessed before.
The whole basis of making this work is the commitment and ideally interest in cozying up with a book you want to read. Soon after, because you aren’t 13 anymore, you will pass out. If not, you gain the significant benefit of having not been staring at a screen, engaged in thought, eating, worrying, etc. Your sleep quality will increase even if you read extra some nights.
I can't really 'break' on the computer because that's where the work is happening. But I can push down the laptop screen for a little while and read for 10 minutes, no problem. A physical book is a different modality, different everything, and sticky enough to keep my interest but not so sticky I'll lose an hour without noticing.
Do that 2 or 3 times during your workday and you'll be finishing books in no time.
Don't get me wrong, I read all the time now, but I can't burn through books like I did back then, I don't read faster than I can subvocalize, and it can be challenging to stay focused or retain what I read.
A few years ago, I spent about nine months reading a single book about Napoleon. It was pretty long, detailed, and complex, so it wasn't intended to be an easy/quick read, but it still took me a pretty long time to get through it while giving it the proper focus. But the annoying part is that a couple years later, I struggle to remember details about Napoleon. I know, memory needs to be practiced and reinforced and such, but I had hoped the length of my immersion in the subject would've done a bit more in this area on its own.