(A Coach/therapist’s letter to men who feel restless, disconnected, and quietly unfulfilled)

If you’re a man approaching 40, or already there climbing up the big steep hill to the next milestone, and you feel unsettled in a way you can’t quite explain — this is for you.

Not because something has gone “wrong”, but because something has finally become clear.

Most men don’t wake up at 40 and announce, “I’m having a midlife crisis.”

What actually happens is far quieter.

You start feeling bored by things that used to distract you.

You feel irritated by routines you once accepted.

You look at your relationship, your job, your social life — and can start to feel strangely disconnected from all of it.

And the most confusing part? Nothing is obviously broken….

Why This Age Hits Men So Hard – The Biological Facts!

As a coach and trainee therapist, I sit with men every week who say some version of:

“I don’t know what’s wrong. I should be happy, but I’m not.”

At 40, men reach a point where autopilot stops working.

Let’s pause and talk about something many guys never learn in school: your hormones are not static. They change over time, and that matters deeply for your energy, mood, desire, and how you experience life and relationships.

Around the age of 40, many men begin to feel changes that don’t feel random and that’s because they’re linked to very real shifts in hormone biology.

Testosterone Doesn’t Fall Off a Cliff – It Declines Gradually

Unlike what you might hear in the media, men don’t go through a sudden “male menopause” like women do. Instead, testosterone, the hormone most closely associated with male biological identity, begins to decline slowly and steadily from around your 30s onward. Research shows this decline is roughly about 1 % per year after age 30. 

To put that in perspective:

• At 30, your testosterone is near its adult peak.
• By 40, you’ve already experienced years of gradual decline.
• By 50–60, the difference is more noticeable both physically and emotionally.  

This slow hormonal change is often referred to in medical literature as part of andropause or late-onset hypogonadism, though those terms can sometimes be misleading because the shift is gradual, not abrupt, and affects each man differently. 

What Testosterone Actually Does

Testosterone plays many roles in your body — far beyond libido:

• It helps maintain muscle mass and strength.
• It supports bone density and skeletal health.
• It influences red blood cell production and overall energy.
• It plays a part in mood, motivation, and emotional regulation.
• It stimulates sexual desire and reproductive function.  

So when testosterone dips – even just a bit — it can show up in ways that feel psychological, emotional, and physical all at once.

Why You Might Not Notice at First

Because the decline is gradual, most men don’t feel a “switch flip.” Instead, you start noticing:

• Less energy, even after decent sleep
• Motivation that once came easily now requires effort
• Lower drive and desire in sex and life
• Mood shifts, more irritation, less patience
• Reduced confidence or feeling “not quite myself”
• Changes in body composition a bit more fat, a bit less muscle
• A creeping sense that things aren’t as fun anymore  

These aren’t dramatic changes one day, they’re the subtle results of years of small hormonal shifts and because testosterone influences mood and motivation, these shifts can feel emotional before they feel biological.

It’s Not Just Testosterone — The Whole System Changes

The production of testosterone is governed by a feedback loop between your brain and your testes. With age, this loop becomes less efficient, meaning your body produces slightly less hormone and responds slightly differently to what it does produce. 

Plus, other hormones like growth hormone and adrenal androgens (which also affect vitality and stress response) decline over time too, so the whole hormonal landscape shifts. 

Why This Matters at 40

At 40, these hormonal shifts often intersect with life reality checks, relationship strains, career plateau, unmet goals, changing bodies, and the first real awareness of time passing.

That’s why what feels like a “crisis” often feels like:

• low energy
• lack of motivation
• creeping dissatisfaction
• longing for something more

Not because you’re weak —

but because your internal chemistry has changed, and your brain is suddenly comparing your inner experience to your outer life expectations and when your internal validation sources aren’t as strong as they once were, your brain starts searching externally, in relationships, sex, novelty, validation from others, and fantasies that feel exciting precisely because they promise a rush of feeling alive again.

Biologically, testosterone begins to fluctuate and slowly decline. This doesn’t just affect libido, it affects drive, confidence, tolerance, and motivation. What you once pushed down or ignored suddenly demands attention.

Psychologically, your brain shifts from building mode to meaning mode. You start asking:

• Is this the life I actually chose?
• Have I lived for myself, or for everyone else?
• Who am I?
• If nothing changes, is this really how I want the next 40 years to look?

This is not weakness. This is self-awareness arriving late, because no one taught you how to access it earlier.

The Life of Convenience (And Why It Feels Like a Trap)

Many men arrive at 40 realising they didn’t consciously design their life – they slid into it.

The relationship made sense.

The job was stable.

The family structure worked.

The expectations were met.

But alignment and convenience are not the same thing.

A lot of men are not unhappy because their partner is “wrong” – they’re unhappy because they were never honest about who they were or what they needed, and do start to feel everything became about convenience, and now that’s not enough..

So now you feel:

• tied down
• under pressure
• emotionally muted
• resentful without knowing why

Not because someone is controlling you, but because you’ve been people-pleasing your way through adulthood.

You learned early that being a “good man” meant not rocking the boat. Now you’re suffocating in the boat you never questioned getting into.

Validation: The Missing Piece No One Talks About

Let’s talk about validation, because this is at the core of so much male behaviour at this age. Men are rarely taught how to validate themselves.

Your worth has likely been measured by:

• productivity
• providing
• being wanted
• being chosen
• being a team player
• being useful
• being successful in sports and work

By 40, many men feel invisible. At work, you’re replaceable. At home, you’re functional. In your relationship, you’re familiar.

So your nervous system starts searching for external confirmation that you still matter.

This is where validation-seeking behaviours appear.

Let’s Talk About the Relationship You’re In

If you’re around 40, there’s a good chance the relationship you’re in wasn’t chosen with full awareness, because you weren’t the man you are now when you entered it.

You might be with your first love, the person you grew up with, changed with, adapted to, without ever stopping to ask whether you still fit each other.

You might be with your second or third serious partner, a relationship formed after heartbreak, loneliness, or the fear of starting again Or you might be in a relationship that simply worked at the time, it felt safe, sensible, and stable and now feels flat, distant, or restrictive.

None of this makes you a bad man. It makes you human – and honest enough to notice change.

Why You’re Still There, Even If You’re Unhappy

Let me say this clearly, because men rarely hear it said plainly.

You’re probably not staying because you’re happy.

You’re staying because you’re afraid.

Afraid of hurting someone you care about.

Afraid of being judged.

Afraid of losing access to your children.

Afraid of starting again at 40.

Afraid that you won’t be chosen again.

But underneath all of that is a quieter fear, one most men don’t name:

The fear of being alone with yourself.

If you’ve moved from one relationship to another, or if you’ve never truly been single as an adult, the idea of being alone can feel confronting rather than freeing, and it’s not what your ‘mates’ are doing –

This relationship may be doing more than offering companionship. It may be protecting you from having to face yourself, and providing that comforting feeling of conforming.

Be Honest: Did You Choose This, or Did You Settle?

I’m not asking this to shame you.

I’m asking because clarity matters.

Settling sounds like:

• It’s not perfect, but nothing is.
• I should be grateful.
• It’s easier to stay.
• I’ve already invested so much.
• I do love her but…
• I often think of someone else, but I couldn’t her
• It just works.. I guess
• Everyone else is married off..

Choosing sounds different:

• I can be myself here, everything aligns perfect
• I feel emotionally and physically connected.
• I don’t have to shrink or perform.
• This relationship supports the man I’m becoming.

If you’re honest, you already know which one you’re doing.

Why the Thought of Being Single Feels So Heavy

Being single at 40 can feel like failure, especially in a culture that measures men by stability and continuity. However the real weight isn’t social, It’s emotional.

Being single means:

• no distraction
• no automatic validation
• no role to hide behind

It forces you to ask: Who am I without this relationship?

If you’ve never learned how to self-validate, self-soothe, or sit with your own emotions, that question can feel overwhelming.

So staying feels safer than facing it.

Here’s the Truth Most Men Avoid

If you can’t imagine being single, that doesn’t mean you should stay.

It means you haven’t yet built a relationship with yourself.

Being single at 40 isn’t a failure.

For many men, it’s a developmental stage you were never encouraged to enter earlier.

It’s where you:

• stop performing
• rebuild self-trust
• learn what you actually want
• choose a partner rather than needing one

Men who never allow themselves this phase often repeat the same relationship – different person, same dynamic, because there hasn’t been growth, maybe healing, but not growth! Are you back on the couch each night? Are you secretly thinking about someone else?

Staying Isn’t Always the Noble Choice

Staying in the wrong relationship doesn’t protect anyone in the long run.

It creates:

• quiet resentment
• emotional withdrawal
• sexual disconnection
• fantasy lives outside the relationship
• a slow erosion of self-respect

Leaving doesn’t make you selfish. Staying disconnected doesn’t make you loyal.

The real issue isn’t leaving or staying – it’s living unconsciously.

What I’d Ask You as Your Therapist

Before you ask yourself,

“Should I leave or stay?”

Ask yourself:

• Am I here out of love, or out of fear?
• Can I be fully honest in this relationship?
• Do I feel more myself, or less, when I’m in it?
• If nothing changed, could I accept this life forever?
• Is she the one who blows my mind, and am I happy sleeping with her for the rest of my life?

You don’t need immediate answers. You do need the courage to stop avoiding the questions.

Because the most painful thing I see men do at this age

isn’t leaving a relationship – it’s staying silent and slowly disappearing inside it.

Men block away the questions, block away the doubt and try and plod on, and what the fuck for? To live a life you’ve never really wanted? To make do?? Is this all life means to you?

This is the problem – Because this is where the need for validation, can take strong hold, this is where affairs can creep in.. and suddenly your mind starts to wander..

Seeking out the answers..

Why Younger Women Suddenly start to stand out..

When a younger woman shows interest, it doesn’t just feel flattering – it feels restorative.

It says:

• You’re still attractive.
• You still have power.
• You still have options.
• You’re not past it.

This isn’t always about sex.

It’s about identity repair.

Dating apps amplify this. You lower your age. You lower the age you’re searching for. You chase the dopamine hit of being wanted rather than asking yourself what you actually want.

But here’s the part I challenge men on in coaching therapy:

If you don’t want more children, repeatedly choosing women without children, or significantly younger women, is not accidental.

It’s avoidance.

You’re outsourcing clarity to the future and hoping it won’t cost anyone.

That’s not malicious – but it is your responsibility.

You look at women, and think – “will my friends be impressed by her”, “Will she fit into my social circle”, “Will she make me feel younger” , I mean yes, yes and yes, but after the first year or two, you will realise, this isn’t enough. When your baby raising days are over, you’re sat now with a childless younger woman, and the question of “Do I really want to become a father again?” – Now do you people-please, or take the reigns and seek what you truly want.

Sex, Threesomes, and the Search for Validation

Around this age, many men suddenly start thinking about sexual exploration – threesomes, older women, young women, experimentation, novelty, fantasies they ignored earlier in life.

Let me be very clear:

This is not about being perverted, broken, or immature.

It’s about validation multiplied.

Being desired by one woman reassures you. Being desired by two feels like confirmation of masculinity, relevance, and power.

It can feel like stepping into a “boss era” — admired, wanted, envied.

But here’s the question I ask men:

“What do you think this experience would finally prove about you?”

Because sexual novelty often isn’t about pleasure – it’s about self-worth.

There is nothing wrong with curiosity. There is a risk when curiosity becomes a way to avoid looking at deeper dissatisfaction.

If your life feels flat, sex becomes the fantasy of aliveness. If your identity feels lost, desire becomes proof you still exist, so multiplying that in a ménage a trois.

Children, Regret, and the Illusion of Starting Over

Many men at 40 already have children – and for the first time in years, life is easing.

Your kids are more independent. You’re getting space back.

You can breathe.

This is why the idea of another baby creates such conflict.

A new child can symbolise youth, purpose, and renewal, that fresh feeling of a new little love in your life, but it also means losing autonomy again, and as stats prove, children 2nd time around can cause much more conflict. The woman you chose second time around, who made you feel young, alive again, suddenly becomes mum, and the circle that trapped you in the first cycle, starts all over again.

I work with men who agree to another child not because they want one, but because they don’t want to disappoint their partner or face difficult conversations – again people-pleasing!!

That isn’t selflessness.

That’s fear and fear-based choices are where resentment is born.

Men’s Mental Health at 40: What I See in the coaching Room

Men don’t usually talk about this stage — they act it out.

They:

• withdraw emotionally
• fantasise about escape
• chase validation
• avoid honesty
• live parallel lives

Not because they’re selfish – but because no one taught them how to process change without running from it.

If you recognise yourself here, I want you to hear this:

You are not broken.

You are not failing.

You are waking up.

My Advice…

Before you change your relationship, your partner, your sex life, or your future – pause.

Ask yourself:

• Where am I seeking validation instead of self-acceptance?
• What have I never allowed myself to say out loud?
• Am I avoiding discomfort, or avoiding truth?
• If I keep living this way, who do I become?

You don’t need to implode your life.

You do need to stop abandoning yourself.

Sometimes staying and rebuilding is the bravest thing. Sometimes leaving honestly is the healthiest thing.

What matters is that you choose, consciously – instead of drifting.

What do you really want? Who do you really want? Are you happy to conform? Are you happy with you? What is missing? What brought you here…

To the Man Reading This

You’re allowed to want more than convenience.

You’re allowed to evolve.

You’re allowed to change your mind.

You’re allowed to prioritise authenticity over approval.

Turning 40 isn’t about getting your youth back.

It’s about finally becoming the man you never had space to be.

And that journey doesn’t start with validation from women, sex, or novelty — it starts with honesty.

With yourself..

(Contact me for Coaching – transformwithkerry@gmail.com)