Anisha Mitelan

Nothing here constitutes medical advice, psychological advice, diagnosis, or treatment. This newsletter is not a substitute for care from a licensed professional.

It is 11:45 PM on a Tuesday evening in March 2024. A woman lies in a darkened room in Chicago, Illinois, watching the digits change on her digital clock. Her pulse is quick, her mind racing through an unwritten email, a missed phone call, and three tasks scheduled for Thursday morning. She is experiencing pre-sleep cognitive arousal, a state where internal worry suppresses the natural physiological transition into sleep. Instead of turning on the television, she reaches for a physical notebook on her nightstand. For five minutes, she writes down every pending task, unorganized thought, and pressing concern without editing or organizing her handwriting. She closes the cover, turns over, and closes her eyes. Within fifteen minutes, her breathing slows, her heart rate decelerates, and she drifts off to sleep.

The psychological mechanism behind this change is known as cognitive offloading. When an individual externalizes uncompleted tasks into a physical medium, the brain reduces the neural cognitive load required to hold those items in short-term working memory. Late-night anxiety often stems from executive functioning processes attempting to track open loops. These unresolved intentions keep the central executive network active, delaying the onset of slow-wave sleep.

A landmark study led by Dr. Michael K. Scullin at Baylor University, published in January 2018 in the Journal of Experimental Psychology: General, evaluated this exact phenomenon. The randomized controlled trial included 57 healthy young adults aged 18 to 30, monitored in a controlled laboratory environment using polysomnography, the gold standard for objective sleep measurement. Participants were randomly assigned to write either a detailed to-do list for the upcoming days or a list of tasks they had completed over the previous days for five minutes immediately before bed.

The findings revealed a direct, measurable difference in sleep architecture. Participants who wrote detailed to-do lists fell asleep significantly faster than those who wrote about completed tasks. The to-do list group achieved sleep onset in an average of 16 minutes, compared to 25 minutes for the completed-task group, yielding a statistically significant reduction of 9 minutes in sleep onset latency (p < 0.05) [1]. Furthermore, the study demonstrated an internal dose-response relationship: the more specific and detailed the pre-bed to-do list was, the faster the participant fell asleep. Conversely, writing about completed tasks correlated with longer delays in falling asleep.

A secondary study by Dr. Denise Arigo and Dr. Joshua M. Smyth, published in June 2011 in the Journal of Behavioral Medicine, examined expressive writing in 111 adults suffering from self-reported sleep disturbance and stress. Participants completed short daily writing sessions targeting intrusive thoughts. The trial demonstrated that structured expressive writing significantly decreased overall sleep difficulties at an 8-week follow-up compared to controls [2].

The critical insight from this research is counterintuitive to how most people approach nighttime stress. Many individuals attempt to calm an anxious mind by distracting themselves, engaging in relaxation breathing, or forcibly trying to clear their thoughts. However, internal cognitive tracking of uncompleted obligations creates persistent cognitive arousal. By explicitly identifying and externalizing future tasks into a structured, visible list, an individual signals to the brain that the responsibility for retaining information has been transferred to an external repository. This action allows the executive control networks in the prefrontal cortex to disengage, lowering systemic arousal and enabling the physiological sleep response.

My Take

I view pre-bed expressive writing and task offloading as an essential act of personal autonomy in a culture that constantly overstimulates human attention. We are continuously conditioned to consume information until the second our heads touch the pillow, leaving our brains zero space to process unresolved stress. Taking five minutes to transfer uncompleted tasks from your head onto paper gives you immediate control over your mental environment. It is an intentional, low-cost intervention that prioritizes individual agency over passive suffering. I would alter my position on this practice if robust, large-scale clinical trials were to demonstrate that externalizing worries actually increases hyperarousal in clinical populations or fails to outperform established placebo interventions under rigorous laboratory conditions.

Action This Week

• Place a physical notebook and pen directly on your nightstand today, ensuring no electronic screens are involved in the process.
• Spend exactly five minutes writing down every pending task or worry before turning off your reading light tonight.
• Observe your time to fall asleep for three consecutive nights without changing any other element of your existing sleep environment.

Blind Spot Deep Dive

The hidden cost of nocturnal cognitive arousal often falls heavily on shift workers and individuals working multiple jobs, where unpredictable schedules make regular routines difficult. Standard sleep hygiene advice frequently ignores the systemic reality of people managing non-traditional hours. For these individuals, the cognitive burden of tracking household, financial, and employment obligations is compounded by circadian disruption, making low-barrier mental offloading tools an urgent, accessible substitute for expensive clinical therapies.

The Closing Question

Look at your current bedtime routine and ask yourself if you give your brain a clear, physical signal that your workday is finished. Are you keeping open mental loops active until the moment you close your eyes, or are you taking intentional steps to offload your daily mental stress before trying to rest?

Action Plan

Do this: Write down a complete list of tomorrow’s uncompleted tasks on paper right before turning out the light. Five minutes, one writing session.

Ask this: Ask yourself if holding onto unresolved thoughts serves your health tonight or if it can wait until morning. One brief check-in with yourself.

Document this: Note the approximate time it takes you to fall asleep after writing in a simple nightstand journal. One line in a notebook.

Escalate if: Sleep latency consistently exceeds 45 minutes for more than four weeks despite maintaining consistent pre-bed offloading practices.

If you do nothing: Continued elevated pre-sleep cognitive arousal, increased nighttime anxiety, and extended sleep onset latency that degrades overall rest quality.

If you need help right now > In the United States, call or text 988 to reach the Suicide and Crisis Lifeline, available 24 hours a day. You can also text HOME to 741741 to reach the Crisis Text Line. If someone is in immediate danger, call 911. Outside the United States, the International Association for Suicide Prevention maintains a directory of crisis centers at iasp.info/resources/Crisis_Centres.

References

1. Scullin, M. K., Krueger, M. L., Ballard, H. K., Sanchez, C., & Bliwise, D. L. (2018). The effects of bedtime writing on sleep onset latency: A randomized trial of case-specific to-do lists of completed lists. Journal of Experimental Psychology: General, 147(1), 139–146. https://doi.org/10.1037/xge0000374
2. Arigo, D., & Smyth, J. M. (2011). The benefits of expressive writing on sleep difficulty and appearance concerns for college women. Journal of Behavioral Medicine, 35(4), 452–462. https://doi.org/10.1007/s10865-011-9372-x

© 2026 Mentally Forward by Anisha Mitelan. Published every business day.