You don't have a discipline problem with your attention. You have an environment problem, and a habit you can't see.
is the average time to fully return to a task after being interrupted. In observed offices people were interrupted, or interrupted themselves, roughly every three minutes. The arithmetic doesn't leave much room.
Mark et al., University of California, Irvine — observational studies of knowledge work.First name. It stays on this phone — nothing gets sent anywhere.
Everyone blames notifications. The observational data says something less comfortable.
of time spent off-task came from self-interruption — you picking up the phone, not the phone calling you. Only around 40% came from notifications or noise. In earlier studies the self-driven share was 40%, so it has been climbing.
Workplace multitasking observation study, 2025; comparison with Czerwinski et al. (2004).Switching away from an unfinished task leaves part of your mind still allocated to it — and that residue measurably degrades whatever you do next. Finishing something before you switch produces clearly better performance on the following task than switching mid-work.
Leroy (2009), University of Washington.A phone sitting on the desk reduces available working memory even when it’s silent and face-down. The effort of not checking it draws on the same resource you’re trying to think with. Anticipating a notification impairs performance on its own.
Ward et al. (2017), University of Texas at Austin, on the mere presence of one’s smartphone.The strongest causal evidence here: a randomised trial with 467 participants blocked mobile internet for two weeks and measured real improvements in sustained attention, mental health and wellbeing. Not a correlation — an experiment.
Castelo et al. (2025), PNAS Nexus.Why this matters for the next chapter. If most of the problem is self-generated, blocking apps only fixes part of it. That’s why the log asks where the interruption came from — after a week you’ll know your own split instead of guessing.
Fill this in right after a block of work. Guessing at the end of the day defeats the point — you’ll undercount, everyone does.
Read this first. Everything below is general information drawn from published research, and every claim names the study behind it so you can check it yourself. It is not medical advice and it doesn’t know anything about you. Your situation, any condition you have and anything you already take can change all of it — so talk to a doctor before acting on any of this.