What If It’s a Hardware Problem, Not a Software Problem?
Before you decide your brain is broken, spend seven days looking after the body it lives in.
There are days when everything feels harder than it should.
You’re flat.
Irritable.
Anxious for no obvious reason.
You can’t concentrate.
Everything feels overwhelming.
You don’t really want to see anyone.
You’re tired, but somehow also wired.
And pretty quickly we start wondering:
Maybe I’m burnt out.
Maybe my anxiety is getting worse.
Maybe I need to work on my mindset.
Maybe I just need to get my shit together.
Sometimes, yes, there is a genuine mental-health issue that deserves proper support.
But before we assume the software is malfunctioning, I think it’s worth checking the hardware.
Because your brain isn’t floating around separately from your body.
It sits inside an organism that needs food, sleep, movement, daylight, nutrients and recovery.
And sometimes what feels like a mental-health problem is at least partly a body-under-pressure problem.
Your brain is part of your body
We talk about mental health and physical health as though there’s a neat little wall between them.
There isn’t.
Sleep affects emotional regulation.
Movement affects mood.
Nutrition provides the raw materials your nervous system uses to function.
Hormones, illness, pain, iron deficiency, thyroid issues, medications and under-fuelling can all affect how we feel mentally.
So if you’ve been sleeping five hours, living on coffee, barely eating until lunch, sitting at a desk all day and running on stress...
it shouldn’t shock us that your brain starts feeling a bit shit.
Sleep can make you feel like a different person
This is probably the clearest example.
A major 2024 meta-analysis looking at more than 50 years of experimental sleep-loss research found that sleep deprivation reduced positive emotion and increased anxiety symptoms.
In other words:
change the sleep, and you can change the way someone experiences the world.
The email feels more threatening.
The kids feel louder.
The problem feels bigger.
Your partner chewing next to you becomes grounds for divorce.
Nothing necessarily changed externally.
The nervous system receiving the information did.
Movement changes more than fitness
Movement isn’t just something we do to burn calories.
It can change how we feel.
Research consistently shows that physical activity can reduce symptoms of depression and anxiety, and that doesn’t require flogging ourselves.
A walk outside.
Pilates.
Strength training.
A bike ride.
Gardening.
Anything that gets the body moving and the nervous system out of the same chair, same room and same thought loop.
Movement is not a replacement for mental-health treatment.
But it absolutely belongs in the conversation.
And then there’s food
Your brain is an expensive organ to run.
It needs energy.
Amino acids.
Essential fats.
Vitamins and minerals.
Glucose.
And your gut, hormones, immune system and nervous system are all constantly interacting.
Research into nutritional psychiatry is growing, and better overall diet quality appears to support mental health in some people.
That doesn’t mean broccoli cures depression.
But I also don’t think we should be surprised when a poorly fed human feels poorly.
Have you actually eaten enough?
This gets overlooked constantly.
Especially in women.
We’re told to:
eat less,
skip breakfast,
cut carbs,
fast,
keep calories low,
drink coffee,
and somehow also:
work,
train,
parent,
concentrate,
sleep well,
manage stress,
have patience
and remain emotionally stable.
That’s quite a brief.
Under-fuelling can show up as:
fatigue,
irritability,
poor concentration,
headaches,
feeling cold,
cravings,
poor recovery,
sleep disruption,
and generally feeling not quite right.
Then we start diagnosing our personality.
Maybe I’m lazy.
Maybe I’m unmotivated.
Maybe I’m not coping.
Or...
maybe we should eat lunch.
The 7-Day Hardware Experiment
This isn’t a diagnosis.
It’s an experiment.
For seven days, instead of trying to think yourself into feeling better, give your physical body some proper maintenance.
1. Fuel
Eat three proper meals.
Not coffee for breakfast and a rice cake at 11.
Build meals around:
Protein + carbohydrate + plants/fibre + some fat.
Think:
eggs + toast + fruit
yoghurt + oats + berries + nuts
chicken + rice + vegetables
salmon + potatoes + salad
lentil curry + rice + yoghurt
Don’t spend the week hungry.
Don’t run an aggressive calorie deficit.
Your job for seven days is to give the machine enough fuel to run.
2. Move
Not punish.
Move.
A 20–30 minute walk.
Pilates.
A strength session.
A bike ride.
Something every day if practical.
If you’ve been doing nothing, start gently.
If you’ve been smashing yourself with hard training while exhausted, this might be the week to back off.
Movement should make you feel more human, not more cooked.
3. Get outside
Ideally early in the day.
Daylight is an important signal for our circadian rhythm and sleep-wake cycle.
Walk outside.
Drink your coffee outside.
Stand there staring at the garden for ten minutes.
It doesn’t need to be glamorous.
4. Rest like it matters
Give yourself an actual bedtime.
Try to create enough opportunity for 7–9 hours of sleep.
Dim the lights.
Put the phone somewhere less convenient.
Stop treating sleep as whatever time is left over after everything else.
5. Turn the input down
You don’t need a meditation retreat.
Just create moments where you aren’t consuming more information.
Walk without a podcast.
Drive without calls.
Sit outside.
Have a shower without a screen nearby.
Sometimes your nervous system needs less stimulation, not another productivity hack.
Track what changes
At the beginning of the week, rate these from 1–10:
Energy
Mood
Anxiety
Irritability
Concentration
Sleep quality
Then do it again on day seven.
Ask:
Did supporting my body change how my brain felt?
Maybe your energy is better.
Maybe you’re less snappy.
Maybe you’re sleeping better.
Maybe the afternoon dread has eased.
Maybe things feel less impossible.
That’s useful information.
And if nothing changes?
Also useful information.
If you’re eating properly, sleeping reasonably, moving, resting and still feeling persistently low, anxious, numb, overwhelmed or unlike yourself, that deserves a closer look.
Mental-health conditions are real.
They are not caused by a failure to eat vegetables or go for walks.
Lifestyle support can sit alongside therapy, medication and medical care.
And physical causes matter too. Iron deficiency, thyroid issues, hormonal changes, sleep disorders, illness and medication effects can all contribute to mood and energy changes.
If symptoms are significant or persistent, speak with your GP or another appropriate health professional.
And obviously, don’t stop prescribed medication because you had a nutritious Tuesday.
Before you rewrite the software, maintain the hardware
This is the bit I want you to remember.
For seven days, forget weight loss.
Forget productivity.
Forget self-improvement.
Just ask:
What happens if I treat my physical body really well for a week?
Enough food.
Movement.
Daylight.
Water.
Sleep.
Rest.
Then see who turns up.
You might still need mental-health support.
You may uncover something physical that needs investigating.
Or you may discover that part of what you were calling “not coping” was a tired, hungry, under-recovered nervous system asking for basic care.
Either way, you’ve learned something.
Before we decide the software is broken, let’s make sure the hardware has been looked after.
Give Your Hardware a Proper Chance
If you’re tired of feeling like you should be coping better, start with the basics before adding another strategy to your brain.
For seven days, fuel properly, move your body, prioritise sleep and give yourself some actual recovery. Use the 7-Day Hardware Check-In to track what changes.
And if food, energy and healthy routines still feel harder than they should, I can help you build a realistic nutrition and health plan around your actual life.