You turn off the light and your brain switches on: the birthday gift to order, the medical appointment to reschedule, the report due Friday, the nearly empty fridge. That is the mental load: the invisible work of planning, organizing and double-checking that occupies the mind around the clock, even when your hands are doing nothing. It never shows up on a schedule, yet it exhausts you as surely as a full day of work.
Where does the concept come from, how do you know if your mental load is too heavy, why is the brain so bad at carrying all of it, and above all how do you lighten it in practice? Here is a complete tour of the question, including what individual tricks will not fix.
Where the concept of mental load comes from
The term was not born on social media. In 1984, the French sociologist Monique Haicault published a now famous article, "La gestion ordinaire de la vie en deux" (managing everyday life in two), describing the mental work of women juggling a job and a household: they do not just perform domestic tasks, they think about them, plan them and coordinate them constantly, including during office hours. That is what mental load originally means: managing two lives inside a single head.
The concept went mainstream in 2017 with the comic "You Should've Asked" by the French cartoonist Emma, shared millions of times. Its key scene: a man offers to help his overwhelmed partner, who finally snaps. "You should've asked" sums up the whole problem: as long as one person has to think of everything and delegate each task one by one, she remains the household's project manager, and that role cannot be handed over by waiting to be asked.
Since then, the term has widened. People now talk about mental load at work, digital mental load, parental mental load. The common thread: an accumulation of things you must not forget, fueled by notifications, work messaging spilling into the evening, and lives where everyone has become their own secretary. The original sociological point remains central, though: this load is very unevenly shared.
Signs your mental load is too heavy
A few signals come up again and again: looping ruminations (mentally replaying your to-do list as you fall asleep), decision fatigue (choosing tonight's dinner becomes an ordeal), unusual forgetfulness, outsized irritability at one more request, and the feeling of never being fully available, even during leisure time. The body speaks too: degraded sleep, tension, difficulty focusing on a single thing.
These signs deserve to be taken seriously, because a chronic mental load is one of the roads that lead to exhaustion. If you recognize yourself in several of them, our article on the signs of mental exhaustion and burnout takes the subject further https://www.cobaltapp.io/fr/blog/epuisement-mental-burn-out-signes-solutions
Why the brain handles open loops so badly
In the 1920s, the psychologist Bluma Zeigarnik observed that restaurant waiters remembered ongoing orders perfectly, then forgot them as soon as the bill was paid. Her experiments confirmed the phenomenon, known ever since as the Zeigarnik effect: the brain keeps unfinished tasks active in memory and pushes them back to the surface again and again. Useful for not forgetting a dish in the kitchen, exhausting when you carry fifty unfinished tasks at once.
This is exactly David Allen's starting point in Getting Things Done: your brain is made for having ideas, not for storing them. Every commitment kept in your head forms an "open loop" that consumes attention in the background, whether you are in a meeting or at the cinema. Mental load is therefore not a failure of willpower or personal organization: it is the normal behavior of a brain asked to serve as a hard drive.
Strategy 1: externalize everything into a trusted system
The first answer is mechanical: get the open loops out of your head. That is the core of David Allen's GTD method: capture every task, idea or promise in an external system (a notebook, an app, a single inbox), then clarify the concrete next action for each item. If it takes less than two minutes, do it immediately. The brain only releases the pressure if it trusts the system, hence the weekly review, the appointment where you bring your lists up to date. Our summary of the book details the method https://www.cobaltapp.io/fr/resumes/getting-things-done
Strategy 2: share responsibilities, not tasks
At home as at work, "helping" is not enough. As long as one person has to think of the task, trigger it and check it, they keep its full weight, even if someone else performs it. What actually works: assigning complete ownership of a domain, from spotting the need to the final check. Whoever "owns" the laundry notices the basket is full, runs the machine, hangs, folds and puts away, with no reminders and no instructions.
| "Helping" | Owning the task |
|---|---|
| Acts when asked | Spots the need on their own |
| Needs instructions | Decides how to do it |
| The mental load stays with the other person | The mental load is transferred |
| "Tell me if I can help" | "Groceries are my responsibility" |
The same logic applies at the office: make invisible tasks visible (note taking, meeting logistics, follow-up reminders), then assign them explicitly and rotate them. As long as they rest on "whoever thinks of it", the same people always carry them, and their mental load with them.
Strategy 3: reduce what comes in
We talk a lot about draining the load, much less about closing the tap. Every notification, every newsletter, every accepted request creates a potential open loop. Cut non-essential notifications, consolidate channels, and above all say no more often: that is Greg McKeown's thesis in Essentialism, summed up by his motto "less but better". His radical criterion: if it is not a clear yes, it is a no. Fewer commitments structurally mean fewer things to track. Our summary is here https://www.cobaltapp.io/fr/resumes/l-essentialisme
What individual strategies will not fix
Let's be honest: mental load is not just a matter of personal method. It is also structural. In couples, sociological research since Haicault has shown that household management remains very unevenly shared and falls mostly on women; at work, no app compensates for understaffed teams or a culture of 10 pm messages. Lists and explicit ownership genuinely lighten daily life, but the full answer also requires collective negotiation: within the couple, the family and the company.
Lightening your mental load starts with understanding how it works: open loops the brain refuses to drop, and a distribution of work that often stays invisible. The books quoted in this article deserve a full read, but if your reading list is precisely one more open loop, Cobalt offers clear, faithful 15-minute summaries on mobile. Browse the library https://www.cobaltapp.io/fr/resumes and download the app https://www.cobaltapp.io/download