Earlier quoted context omitted.
Self discipline definitely has a momentum effect. My most productive days are the ones that start at 5am with a run, followed by a shower, meditation, and writing up a list of things I want to accomplish that day. Then I start working with my noise cancelling headphones and my flow-state playlist. It's very deliberate from start to finish. My least productive days are the ones where I roll out of bed randomly, when t…
I'm the opposite. If my brain has to engage before 10am the day's a waste. If I "ease into the day" then once I've dealt with the world on fire stuff about 11.30 I'll power through and before I know it it's 9PM and I've been massively productive.
I learned a few years ago that defying my internal clock even has physical effects such as poor digestion and terrible stomach pain. The popular advice to rise early is harmful in my case.