Why am I more productive late at night?
6 anecdotal explanations
Of the 33 posts that I've written thus far, more than 25 were written between the hours of 19:00 and 01:00. There's something so serene about sitting down at my desk at night and filling in a blank canvas.
Late-night productivity seems to be a common pattern, especially among the writers and programmers I know. Most blogs and research online cite circadian rhythm and innate biology as the primary reasons for being more productive at night.
I want more control and agency over when I'm productive. I want to do something else at night that's not just lounging back in my chair by myself typing away. Having a consistent and normal sleep schedule would also do wonders for my social life.
I've experimented with countless strategies to force myself to be more productive during the day. Some things I've tried include:
- Blocking certain websites and even Wi-Fi
- Changing exercise times
- Restructuring my meal schedule
- Scheduling social plans later at night
None of it worked.
In this post, I provide six explanatory mechanisms for why I am more productive at night, in order of anecdotal explanatory power.
Following these explanations, I describe the only universally agreed upon solution I've heard for permanently shifting productivity back into the daytime.
- Late nights are associated with weakened mental filters, leading to less overthinking and easier flow state access.
In my last post, I claim that one reason late night conversations are better is because people are more honest due to weakened mental filters:
People's inhibition levels are lower due to fatigue and possible inebriation effects from other late night activities such as alcohol. This weakens our mental filters and leads to more direct communication, as people say what they actually think rather than a coded version they would say with all their mental faculties.
Lower inhibition levels also lead to faster response times, which are correlated with signaling social connection in conversation. When we're saying what we think without processing second and third order effects, people respond quickly (< 250 ms) and the conversation flows.
Furthermore, our willingness to be honest creates a virtuous cycle where people are continually willing to ask more personal questions, allowing us to connect on a deeper level with others.
The same mechanism that makes late night conversations more honest also applies to individual work. The frontal and prefrontal cortex are primarily responsible for regulating and coordinating other brain regions, with much of this function involving inhibition of impulses and thoughts. This inhibitory control requires finite cognitive resources that become depleted throughout the day (ego depletion). This state enables greater access to our stream of consciousness without the typical blocking mechanisms.
The most compelling evidence comes from working while jet-lagged. When my body thinks it's midnight but local time says noon, I can access that late-night cognitive state during normal working hours.
- There are fewer distractions and obligations late at night, so this is when I can grind without interruption.
The fewer distractions and lower opportunity costs can be direct (actual interruptions or missed events) or indirect (the expectation that you check your phone or a sense of missing out on something).
- Late-night work is more productive because you're more likely to have thought about the task throughout the entire day, which allows the work to metastasize.
Although humans can only sustain about 4 hours of deep cognitive work daily, the remaining hours serve as important "incubation hours". The 10+ hours of conscious and subconscious incubation enable my work at night to draw from that pre-processing.
- Physical tiredness from daytime activity makes evening indoor desk work feel natural.
Sitting down for focused work feels restorative rather than restrictive after a day of physical movement. I am much more restless during the day when I haven't burned 2,000+ calories of energy yet, making it harder to concentrate while sitting at a desk at a computer.
- I've Pavlov'ed myself into being the most productive at night due to my late-night work habits during high school and college.
Years of last-minute assignments and exam cramming have hardwired my brain to associate nighttime with serious work. Throughout high school and college, my brain became used to daydreaming through daytime classes, socializing between lectures, then actually learning the material alone at night.
- It's easier to get into a flow state in the dark when my brain knows it should be dark outside.
I've tried recreating this with blackout curtains during the day, combined with white noise and AirPods to create a controlled sensory environment.
While this helps marginally, my brain still knows that it should be bright outside, and sometimes I end up peering outside my window. The artificial darkness ultimately throws off my circadian rhythm even more, pushing my biological clock even later.
I've only heard one solution that universally works: have kids.
Your body simply doesn't have the energy reserves for midnight work sessions anymore after multiple middle-of-the-night crying sessions.
If late-night productivity is secretly just training for those 2 am baby bottles, well, at least it's preparing for something.
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