Beyond Hormones: The Hidden Biology of Midlife Wellness
Light, mitochondria, movement, grounding and the art of working with your biology
There is something I wish more women were told about midlife.
Your body isn't suddenly failing you.
It is changing.
And the more I learn about the incredible communication happening inside our bodies — between our brains, hormones, mitochondria, muscles, nervous systems and environment — the more convinced I am that midlife health isn't about fighting those changes.
It's about learning to work with them.
We often talk about protein, strength training, sleep and hormones.
But there is another layer to the conversation.
Light.
Rhythm.
Energy.
Movement.
Nature.
The nervous system.
And even the environment around us.
Some of the science here is well established. Some is emerging. And some of the ideas being explored in the world of mitochondrial and quantum biology are still hypotheses rather than proven clinical recommendations.
But I think they're fascinating.
And more importantly, they encourage us to ask a better question:
What does my body actually need to thrive?
Let's start with your mitochondria
If you've never heard of mitochondria, think of them as the tiny energy factories inside your cells.
They help turn the food we eat and oxygen we breathe into usable energy.
And because your body needs energy for practically everything; moving, thinking, repairing, regulating temperature, maintaining tissues and keeping your organs functioning, mitochondrial health matters.
This becomes particularly interesting in midlife.
Because we aren't just trying to maintain a number on the scales.
We're trying to maintain capacity.
The capacity to walk.
Lift.
Play with your grandchildren.
Climb stairs.
Carry shopping.
Get up from the floor.
Travel.
Work.
Dance.
Live.
And one of the best things you can do for that capacity?
Keep your muscles.
Muscle isn't simply about looking toned.
It is metabolically active tissue. It helps us manage glucose, supports our skeleton, contributes to strength and balance, and gives us a greater reserve as we age.
Which is why I don't want women to enter midlife thinking:
“I need to eat less and exercise more.”
I'd rather you thought:
“I need to build my capacity.”
Your body has a clock
You also have something called a circadian rhythm.
Think of it as your body's internal timing system.
It helps coordinate sleep and wakefulness, hormones, metabolism, body temperature and countless other processes.
And one of the strongest signals that helps set that clock is light.
This is why I love the incredibly simple practice of getting outside in natural daylight.
Not because you need to chase some complicated biohack.
But because your body is designed to receive environmental information.
Morning light tells your brain:
It's daytime.
Darkness later tells it:
It's time to wind down.
Which means something as simple as stepping outside in the morning can become part of your wellness routine.
Open the curtains.
Take the dog out.
Walk around the garden.
Have your morning drink outside.
Move your body.
Look at the sky.
You don't need another app.
You need light and rhythm.
And then there is melatonin
You may know melatonin as the “sleep hormone”.
But it is much more interesting than that.
Your body naturally produces melatonin as darkness arrives, helping signal that it's time for the body to move towards sleep.
So think about what happens when we spend our evenings under bright lights, scrolling on our phones, working, watching television and stimulating our brains right up until the moment we expect ourselves to fall asleep.
We're essentially asking our biology:
“Be awake… now go to sleep.”
Perhaps instead we could create a gentler transition.
Dim the lights.
Step away from the phone.
Slow down.
Have a bath.
Read.
Stretch.
Breathe.
Talk.
Let the day finish.
Your body understands rhythm better than it understands rules.
What does this have to do with midlife?
Quite a lot.
Because midlife can be a time when sleep becomes more fragile.
Hormonal changes can influence temperature regulation, mood, sleep and energy.
And when sleep is poor, everything feels harder.
Exercise feels harder.
Hunger can feel harder to manage.
Stress feels louder.
Recovery takes longer.
You feel less resilient.
So rather than looking for one magical menopause supplement, let's look at the foundations.
Light.
Sleep.
Food.
Muscle.
Movement.
Recovery.
Connection.
The boring stuff is often the powerful stuff.
Now let's talk about deuterium
This is where things get a little more interesting.
And I want to explain it without turning this into a chemistry lesson.
Hydrogen comes in different forms.
One of those forms is deuterium — a naturally occurring, slightly heavier form of hydrogen.
Your body contains deuterium naturally.
And because hydrogen is involved in water and energy production, researchers are interested in what happens when deuterium interacts with the machinery inside our cells, particularly the mitochondria.
This is sometimes described as “deuterium biology” or “deutenomics.”
There is genuine scientific research happening in this area.
But here's the important bit:
We are still learning.
A recent review found interesting potential relationships between deuterium and areas such as metabolism, mitochondrial function, ageing and disease, but also concluded that more high-quality human research is needed before these ideas can be translated confidently into clinical recommendations.
So I wouldn't tell you:
“You need a deuterium-depleting diet.”
I would say:
“This is an emerging area of biology that is worth watching.”
And interestingly, the lifestyle foundations we're already talking about, good nutrition, metabolic health, exercise and healthy mitochondrial function, are exactly the areas researchers are interested in.
What about grounding?
Now we're going outside.
Literally.
Grounding, or earthing, is the practice of making direct contact with the Earth's surface — for example, standing barefoot on grass, soil or sand.
The proposed idea is that contact with the Earth's surface may allow electrons to move between the Earth and the body.
This is one of those areas where you'll find some fascinating theories and some small studies, but it is not yet established that grounding produces the sweeping health effects sometimes claimed online.
So why do I still like the practice?
Because there is something wonderfully simple about it.
Take your shoes off.
Stand on the grass.
Feel the ground.
Notice the temperature.
Notice your breathing.
Look around.
Slow down.
You have moved from:
screen → stimulation → thinking
to:
nature → sensation → breathing → presence.
And that alone can be a beautiful practice.
You don't have to believe that you're “recharging your mitochondria” to enjoy being barefoot in the garden.
You can simply experience it.
Let your body remember that it belongs in nature.
And then there are EMFs
We're surrounded by electromagnetic fields.
Wi-Fi.
Mobile phones.
Bluetooth.
Electrical wiring.
Appliances.
Screens.
And, of course, natural electromagnetic fields have existed on Earth forever.
This is an area where there is a lot of fear, misinformation and very strong opinions.
Current WHO evidence does not establish that ordinary low-level exposure to electromagnetic fields causes adverse health effects, although research continues and some areas remain under investigation.
So I don't think we need to live frightened of our phones.
But I also don't think we need to be permanently attached to them.
And this is where I think the conversation becomes much more useful.
Maybe we don't need to ask:
“Is Wi-Fi destroying my mitochondria?”
Maybe we could ask:
“What is my relationship with technology doing to my life?”
Is your phone beside your bed?
Are you scrolling until midnight?
Are notifications interrupting your attention all day?
Are you spending eight hours sitting indoors staring at a screen?
Are you checking messages when you're supposed to be resting?
Because even without making claims about EMFs themselves, the behavioural consequences of constant connectivity are worth considering.
Put the phone down.
Walk outside.
Talk to a human.
Look at the horizon.
Sleep without your phone under your pillow.
Create some space.
Not because you need to fear technology.
Because your nervous system deserves a break from it.
Your nervous system needs rhythm too
This brings me to one of the things I care most about in my work:
regulation.
Your autonomic nervous system is constantly responding to what is happening around you.
Are you safe?
Do you need to be alert?
Can you rest?
Can you digest?
Can you recover?
And sometimes, particularly during midlife, women can feel as though their internal volume control has been turned up.
Stress feels bigger.
Sleep feels more fragile.
Recovery takes longer.
The body feels less predictable.
This is why I created Somalates®.
Not as another workout.
Not as another thing you have to “achieve”.
But as an invitation to come back into your body.
Slow the movement.
Feel the movement.
Breathe.
Notice.
Explore.
Allow your body to experience different rhythms.
Because sometimes what your body needs isn't another demand.
It needs a signal that says:
“You can soften now.”
Movement is information
We often think of exercise as something we do to our bodies.
But movement is also information.
When you lift something heavy, you're telling your muscles:
“We need you.”
When you walk, you're telling your cardiovascular system:
“Let's work.”
When you challenge your balance:
“Stay organised.”
When you move slowly and consciously:
“Pay attention.”
When you breathe deeply and rhythmically:
“Let's change the pace.”
When you stretch and explore your range:
“This is movement we still have access to.”
Your body is constantly adapting to the information you give it.
So give it good information.
And please don't forget to eat
There is no magic midlife diet.
Your body still needs:
protein to maintain and repair muscle.
fibre to support your gut and metabolic health.
plants for vitamins, minerals and phytonutrients.
healthy fats for nutrition and satiety.
carbohydrates to fuel activity and provide important nutrients.
water for hydration.
And enough overall energy to actually support your body.
Especially in midlife, I want women to stop thinking that eating as little as possible is the goal.
Your body needs building materials.
You cannot build a strong, resilient body from chronic restriction.
Your midlife wellness prescription
If I could strip all the complicated wellness advice back to a handful of principles, I'd give you these:
GET LIGHT- Get outside in natural daylight, particularly earlier in the day.
BUILD MUSCLE- Strength train. Lift. Carry. Push. Pull. Challenge your body appropriately.
MOVE DAILY- Walk. Stretch. Dance. Garden. Cycle. Swim. Do Pilates. Movement doesn't have to be punishment.
EAT TO BUILD- Prioritise protein and nourishing whole foods rather than constantly trying to eat less.
PROTECT YOUR RHYTHM- Create a distinction between day and night. Light in the day. Darkness at night. Activity and recovery.
BREATHE- Slow down occasionally. Your nervous system doesn't need you to be productive every minute.
GO OUTSIDE- Nature, daylight, movement and sensory experience are a pretty wonderful combination.
And yes... Take your shoes off if you want to. Feel the grass. Feel the earth. You don't need to turn it into a complicated protocol.
CREATE TECHNOLOGY BOUNDARIES- Not because you should fear EMFs. But because your attention, sleep and nervous system are valuable.
RECOVER- Rest isn't laziness. Adaptation requires recovery.
STAY CURIOUS- Science evolves. Some things we know. Some things we're beginning to understand. And some things remain hypotheses. You don't need to have all the answers to make good choices for your health.
The real secret of midlife health
Perhaps the most important thing I've taken from exploring all of this isn't actually about mitochondria.
Or deuterium.
Or grounding.
Or EMFs.
It's this:
Your body is constantly communicating with the world around it.
Light.
Darkness.
Food.
Movement.
Nature.
Stress.
Sleep.
Touch.
Breathing.
Relationships.
Environment.
And your body is listening.
So perhaps midlife isn't the time to declare war on your body.
Perhaps it's the time to start listening to it.
To give it more of what it needs.
Less of what overwhelms it.
More strength.
More nourishment.
More daylight.
More nature.
More movement.
More rhythm.
More recovery.
More connection.
And a little less pressure to be everything to everyone.
Because health isn't about creating a perfect body.
It's about creating a body that has capacity.
Capacity to move.
Capacity to adapt.
Capacity to recover.
Capacity to feel.
Capacity to live.
And perhaps that's what thriving in midlife really means.
Don't fight your biology. Work with it.
This article discusses emerging areas of research alongside established health principles. References to deuterium, grounding and EMFs should not be interpreted as proven treatments or as a substitute for medical care. For women experiencing significant menopausal symptoms, persistent fatigue, sleep problems or other health concerns, appropriate medical assessment remains important.
About Serendipity Wellness®
Serendipity Wellness provides Pilates classes, wellness coaching, women’s health support, and holistic wellbeing services across Warwickshire. Founded by Tracy Richardson, the business supports women through movement, mindfulness, midlife wellness, and community connection.
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Tracy Richardson MSc is a movement and wellness specialist with a background in therapy, Pilates, and wellbeing, she combines evidence-based practice with a nurturing, mindful approach. Tracy’s mission is to empower individuals to move with awareness, release tension, and cultivate sustainable health, strength, and inner calm. When she’s not teaching or writing, you’ll often find her walking her dog, practising Pilates, or sipping a calming cup of tea.
