by Dr. Morgan Cutlip

Is a hundred hours a week even possible when it comes to the mental load?

I hear this question constantly, and I understand why. The number sounds absurd at first. Maybe you have said it yourself. Maybe your partner has said it to you. There is no way it takes a hundred hours to run a house. We are home, what, a few hours a night?

I get the pushback. I really do. The number sounds impossible until you understand what you are actually measuring. And once you understand it, you will never look at your own exhaustion the same way again. You will finally have language for the thing you have been carrying that you could never quite point to.

So let me break it down. Not to win an argument with your partner, but to give you a way to explain something that has felt unexplainable. Because the moment this clicks for both of you, the conversation changes.

This is actually the kind of question I answer all the time inside Better Share, the relationship tool my team and I built to help couples make the invisible load visible and find fairness in how they share it. If you have a question of your own you want me to dig into, you can submit it and I may answer it in a future post or video.

First, Let’s Agree on the Math

There are 168 hours in a week. That part is not up for debate.

Take out sleep. If you are getting eight hours a night, which, let’s be honest, is generous in this season of life, that is 56 hours gone. You are left with about 112 waking hours.

So the real question is not whether a hundred hours is possible. The question is what could possibly be filling almost all of your waking time. And the answer is the part nobody can see.

The Reason the Number Feels Impossible

When your partner hears “a hundred hours,” he is picturing physical tasks. Dishes. Laundry. Driving to practice. Packing lunches. And he is right that those tasks do not add up to a hundred hours. If the mental load were only the physical doing, the number really would be absurd.

But the mental load is not one thing. It pulls from three different kinds of energy, and only one of them is bound by time.

This is the piece that changes everything, so stay with me.

1. Physical labor. This is the visible part. The actual doing. It is locked into time. You cannot fold laundry while you sleep. You cannot pack a lunch while you sit in a meeting at work. Physical tasks have a start and a stop, and they take up real, countable minutes. This is the part your partner is imagining when he hears the number, and this is the part that has a ceiling.

2. Mental labor. This is the thinking underneath the task. The running to-do list. Mapping out the steps before anything actually gets done. Remembering that the permission slip is due, that you are almost out of the cereal only one kid will eat, that the dentist needs to be rescheduled. This kind of thinking is not bound by time. It can run while you are doing something else entirely.

3. Emotional labor. This is the ongoing cause-and-effect math you are always doing for the people you love. The constant low-grade calculating of how to make things go well for them. How to soften a hard day. How to head off a meltdown before it starts. Emotional labor is not bound by time either. It follows you everywhere. To your desk. To the soccer game. To the moment right before you fall asleep.

So out of these three, only the physical is time-bound. The other two leak into every other corner of your day. That is how a hundred hours stops being impossible and starts being obvious.

I walk through this whole breakdown in the video above and I answer questions like this inside the Better Share app regularly. 

Where the Hours Actually Live

Here is what makes the mental load so slippery. Most of the tasks that run your home do not live neatly in one category. They live at the intersection of all three.

Take “dinner.” It looks like one task. Cooking. But unpack it and you find the whole stack. The mental work of noticing you are low on groceries and planning what to make. The emotional work of remembering one kid will not touch anything green and your partner had a rough day so comfort food might land better. And then, finally, the physical work of standing at the stove.

One task. Three kinds of labor. And two of them were running long before you ever picked up a pan.

This is the part researchers have been naming for years. Sociologist Allison Daminger studied this exact phenomenon and gave it a definition that fits what you are living. She found that cognitive labor is the work of anticipating needs, identifying options, deciding, and then monitoring whether it all actually got handled. Her research showed that this work is taxing precisely because it is invisible, even to the person doing it, and that women carry far more of the anticipating and the monitoring, the two pieces that never seem to turn off.

That word, monitoring, is the one I want you to sit with. Monitoring does not stop when the task is done. It runs in the background, all day, checking and rechecking. That is not a few minutes. That is most of your waking life.

Notice How Rarely Your Brain Is Actually Off

Ask yourself how often, in a normal day, your brain is genuinely off. Completely blank. Daydreaming. In creative mode. Not calculating anything, not tracking anyone, not running the background program that keeps your family’s life from falling apart.

For most of the women I talk to, the answer is almost never.

You can be sitting at your desk at work and the worry about your kid’s rash pulls you straight out of the present. You can be standing at the soccer game and find yourself running through what you are missing for dinner, because the second the whistle blows everyone will be starving and looking at you. It is like a computer with a hundred tabs open. You are not actively clicking on any of them, but they are all running, and they are all draining the battery.

The research backs up exactly how relentless this is. In one well-known study, Offer and Schneider found that working mothers spend close to 48 hours a week multitasking, about ten more hours than fathers, which means moms are doing two things at once during more than two-fifths of their waking time. And here is the part that matters most. For mothers, that constant multitasking was tied to stress and negative emotion. For fathers doing it, it generally was not. So it is not just that you are doing more at once. It is that the doing costs you more.

When you put it together, the math is no longer a mystery. If your brain is almost never off, if the monitoring never fully stops, if two of the three kinds of labor run in the background of everything else, then a hundred hours is not an exaggeration. It is just an honest accounting of a load that has been invisible this whole time.

Why This Matters More Than Winning the Argument

I know the temptation here. You want to take this explanation and hand it to your partner like evidence. See? A hundred hours. I told you.

I would gently steer you away from that.

The point of understanding the three kinds of labor is not to prove your partner wrong. It is to make something visible that he has genuinely never been able to see. Not because he was not paying attention, but because invisible work is, by its nature, invisible. He cannot see the tabs running in your head. He has never had a way to.

That is the real shift. When the load stops being invisible to both of you, it stops being a thing you defend and starts being a thing you can actually look at together. You are not on opposite sides of the hundred hours. You are on the same side of it, finally seeing the same picture.

The hard part is that you cannot get there with another to-do list. Calendars and task apps organize the doing, but the doing was never the issue. The thinking and the worrying are most of the load, and those have stayed invisible because nothing has ever made them visible to both of you at the same time.

That is the whole reason the free Care Load Assessment exists. It measures the mental, emotional, and physical load of running your home, and it shows the result to both partners, not just you. It is not there to fix how you have been explaining yourself, because you were never the problem. It is there to give the two of you a shared starting point. The same picture, at the same time.

It takes about five minutes, it is free, and it is the first step toward your partner finally getting it. You can take the free Care Load Assessment here to get started. And if you already know this is the work you want to do together, you can go straight to Better Share and begin. It lives right at the intersection of the logistical and the relational, which is exactly where the hundred hours has been hiding this whole time.

You are not crazy. You are not exaggerating. You have been carrying something real, and now you have the words for it. That is where finding fairness actually starts.

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PS This was a question I get all the time, and it is exactly the kind of questions I answer inside Better Share. Have one of your own? Submit your question and I may answer it in a future post or video. And take the free Care Load Assessment to see your own number and share it with your partner.