The Hidden Load No One Talks About: Decision Fatigue in Midlife Women

There is a particular kind of tired that does not get resolved with sleep. It shows up at the end of the day, when everything is technically “done”, but your capacity to think, choose, or engage has quietly disappeared. You stand in the kitchen knowing what would support your body, and still find yourself reaching for whatever is easiest. Not because you do not care, and not because you do not know better, but because something in you is simply… done.

Most women I work with recognise this feeling immediately. They describe it as exhaustion, but when we look a little closer, it is not just physical fatigue. It is cognitive. It is the accumulated weight of decisions made across the day, and across the years. We do not often name it, but it has a name. Decision fatigue.

A conversation that stopped me

I was speaking with a client recently about the kind of information she finds most useful. She had been reading my newsletters and following along with some of the strategies I share. “What I like,” she said, “is that I can actually use it straight away. I don’t have to figure out how to apply it.” She gave me an example. A simple shift, eating protein before exercise instead of training on an empty stomach. Not presented as a rule, but with enough context to make sense of it. It stabilises blood sugar, supports more consistent energy output, and reduces that familiar mid-morning drop that so many women push through.

It was not new information to her. What mattered was that it was clear, actionable, and required no extra thinking at the point of implementation. Then she told me about her swim squad. The coach had asked the group what set they wanted to do that morning. A fairly standard question. But when it came to her turn, she could not answer. “I just froze,” she said. “I make decisions all day. At work, at home, for everyone. When I get there, I don’t want another choice. I just want to be told what to do.” Around her, the other women nodded. There was an immediate recognition. The men in the group, she said, were confused by the response.

That moment stayed with me, because it speaks to something deeper than preference. It speaks to capacity.

The invisible load

For many midlife women, life has become a constant stream of decision-making. There are the obvious ones, the strategic decisions at work, the problem-solving, the planning, the leadership. But layered underneath are the hundreds of smaller, less visible decisions that sit in the background of daily life. What needs to be done next. Who needs what. What has been forgotten. What can wait, what cannot. It is the mental tracking of everything. And it doesn’t switch off. By the time the day ends, it is not unusual for that cognitive load to tip into depletion. This is where decision fatigue begins to show itself.

At its core, decision fatigue is the gradual reduction in our ability to make quality decisions after a long period of thinking, choosing, and responding. Each decision draws on a finite pool of mental energy. When that pool runs low, the brain looks for ways to conserve effort. This is when things start to shift. You delay decisions, you avoid them all togther, or you default to what is easiest in the moment. Not because it is what you truly want, but because it requires the least amount of cognitive effort.

It is not a discipline problem

This is where many women turn the frustration inward. They tell themselves they “should” be able to make better choices. That they know what to do, so why are they not doing it. That they just need to be more consistent, more disciplined, more motivated. But this framing misses what is actually happening.

When cognitive capacity is depleted, decision-making changes. The gap between knowing and doing is not a character flaw. It is a reflection of the state of the system making the decision. I see this play out most clearly at the end of the day. You might start the day with every intention of eating well, moving your body, getting to bed on time. And then by evening, those decisions feel disproportionately harder than they should. There is a reason for that. Most of your decision-making capacity has already been used.

The quiet link to burnout

There is increasing discussion around how decision fatigue and burnout interact. Some suggest that burnout reduces our ability to make decisions. Others propose that the relentless demand to make decisions without adequate recovery contributes to burnout over time. In practice, they feed into each other.

Sustained cognitive load, without space to reset, gradually erodes capacity. The brain is constantly processing, responding, adapting. Without breaks, without structure, without support, it becomes harder to keep up.

What I often see are women who are highly capable, highly responsible, and quietly overwhelmed by the sheer volume of thinking required of them. They are not struggling because they cannot cope. They are struggling because they have been coping for too long, without enough recovery.

Why this matters for your health

This is where decision fatigue becomes more than an interesting concept. It becomes highly relevant to how we care for ourselves. Because the decisions that support health are rarely made in isolation. They are made at the end of a long chain of other decisions.

• What to eat for dinner?

• Whether to exercise or rest?

• Whether to pour the wine or go to bed?

When cognitive energy is low, the brain will favour what is familiar, convenient, and immediately rewarding. Not necessarily what is most supportive. This is often interpreted as a lack of willpower. It’s not, it’s the predictable outcome of an overloaded system.

Reducing the load, not adding to it

If decision fatigue is part of the problem, then adding more decisions is not the solution. This is where a different approach is needed. One that focuses less on trying harder, and more on reducing the cognitive load in the first place.

For many of the women I work with, this starts with creating rhythm. Not rigid routines that feel restrictive, but consistent patterns that remove the need to decide in the moment. When meals follow a simple structure, when movement is anchored into the week, when key behaviours are pre-decided, there is less reliance on willpower at the end of the day. Planning ahead becomes a form of support, not control. Decisions made when you have capacity carry you through the moments when you don’t.

Simplifying choices is equally important. We tend to overcomplicate things, assuming that more variety is better. In reality, too many options can create friction. Reducing the number of choices, particularly in areas like food and daily structure, can significantly ease the mental load.

And then there is something we rarely prioritise enough, space. The way many of us work now, particularly in corporate environments, leaves very little room between tasks. Meetings run back-to-back. Conversations stack on top of each other. There is no pause to process, reset, or clear. Over time, this creates a constant state of cognitive input with very little output or recovery.

Even small pockets of space can make a difference. A short walk between meetings. A moment away from the screen. A conscious pause before moving to the next task. These are not luxuries. They are part of maintaining capacity.

Supporting the system underneath it all

None of this sits outside of physiology. Cognitive function relies on stable blood glucose, adequate protein intake, sufficient micronutrients, and restorative sleep. When these foundations are compromised, the brain has fewer resources to work with. This is why, in practice, the work is always both. Supporting the body so that the brain can function well, and creating structures that reduce the unnecessary load on that system.

A different way forward

That comment, “I just don’t want to have to think about it”, was not about avoidance. It was about relief. Relief from the constant demand to decide. Relief from having to interpret, translate, and execute at the end of an already full day.

There is a time for learning and understanding. And there is a time for simplicity. For clear direction. For systems that remove just enough friction to make follow-through possible.

If you find yourself struggling to make decisions that once felt easy, it is worth asking a different question. Not “what is wrong with me?” But, “how much am I carrying?”, because sometimes, the most effective shift is not doing more. It is reducing the load, just enough, to make the next decision easier.

About the Author
Mary-Leigh Scheerhoorn is a Nutritional Medicine and Lifestyle Practitioner, an Accredited Metabolic Balance Consultant, and the founder of Genesis Health and Lifestyle Solutions. She works with professional midlife women experiencing fatigue, weight gain, burnout and hormonal disruption, helping them restore energy, rebalance metabolism and regain confidence in their bodies through personalised nutritional and lifestyle medicine.  Click this link if you'd like to explore working with Mary-Leigh.