Skip to the manual

COMING SOON

The Operating Manual for Being Human

by Mark Feinberg. Twenty years building and selling companies, and a coaching practice. Not a therapist, and the book never pretends otherwise.

The system you've been running without a manual.

Twenty units. Eighty-one field notes. A book about the machinery you were never given instructions for.

Read a piece of it Find where you are

For publishers and press For illustrators

You showed up to a planet you didn't pick, inside a body you didn't design, running a brain already shaped by people whose choices you'll spend decades untangling. There was no orientation. No walkthrough. No troubleshooting guide.

This is the missing manual. It maps the systems you are already running: the triune brain, the vagus nerve, the stress chemistry, the circadian clock, the attachment blueprint, the grief algorithm. And it shows you how to work with the machinery instead of fighting it.

You were never broken. You were running a survival system in a world that never came with a manual.

One kind of book tells you that you are broken, then sells you the repair.

The other explains your wiring beautifully, then leaves you alone with it at 6pm on a Tuesday.

~~Not transformation.~~ ~~Not optimization.~~ Orientation.

It is 6pm on a Tuesday and you feel

If you need help right now: call or text 988, the Suicide and Crisis Lifeline, or text HOME to 741741. A book is not a first call and neither is coaching.

wired, and nothing is actually urgent
flat. not sad, just flat
braced, like something is about to go wrong
fine, apparently
somewhere else, not in the room
tired in a way sleep does not fix
done with people, and lonely about it
heavy, and you could not say why

There is a unit about that

Unit 5 The Nerve Nobody Told You About

Why you can't think your way out of panic.

Polyvagal theory made usable, including money and material safety: what regulation is for when the threat is real.

You cannot read that one yet. Read a few pages of Unit 2, which is finished and set the way the book will be.

There is a unit about that

Unit 4 The Chemistry of Being Human

Why Tuesday felt impossible and Wednesday felt electric.

Dopamine, cortisol, serotonin and oxytocin. Moods reframed as chemical states that respond to inputs, which strips the shame layer off.

You cannot read that one yet. Read a few pages of Unit 2, which is finished and set the way the book will be.

There is a unit about that

Unit 17 Fear, Control & Uncertainty

Why the unknown feels like danger.

Anticipatory fear, intolerance of uncertainty, and control as a safety strategy. The bridge into surrender.

You cannot read that one yet. Read a few pages of Unit 2, which is finished and set the way the book will be.

There is a unit about that

Unit 2 Trauma: The Ghost in the Machine

Why you feel off even when everything looks fine.

Redefines trauma by its effect on the nervous system rather than the drama of the event, and introduces the body as the place healing happens.

You cannot read that one yet. Read a few pages of Unit 2, which is finished and set the way the book will be.

There is a unit about that

Unit 7 The Attention You Lost

How modern life steals your presence, and what it costs.

The attention economy as a nervous-system event. Solitude deprivation, and the road back to presence.

You cannot read that one yet. Read a few pages of Unit 2, which is finished and set the way the book will be.

There is a unit about that

Unit 6 The Clock You Forgot You're Running On

Sleep, light, rhythm, and the simplest thing you're not doing.

Circadian and ultradian rhythm, sleep architecture, and nature as prescription.

You cannot read that one yet. Read a few pages of Unit 2, which is finished and set the way the book will be.

There is a unit about that

Unit 11 Connection & Belonging

Why your nervous system needs other people.

Loneliness as biology, connection versus performance, and love, intimacy and the risk of being known.

You cannot read that one yet. Read a few pages of Unit 2, which is finished and set the way the book will be.

There is a unit about that

Unit 9 Grief & Loss

The weight your body carries when something ends.

The grieving brain's search algorithm, disenfranchised grief, continuing bonds. Anchored by the author's loss of his closest friend.

You cannot read that one yet. Read a few pages of Unit 2, which is finished and set the way the book will be.

Read a piece of it

A few pages from Unit 2, exactly as they will read. Drag a page to turn it. Tap the researcher’s name and a short note about him opens where you are, without moving your place.

UNIT 2

How Trauma Lives in the Body

Your body doesn't forget what your mind tries to move past. Bessel van der Kolk spent decades studying what trauma actually does to the brain and body, and his work in The Body Keeps the Score laid out something the therapy world is still catching up to:

Bessel van der Kolk · Psychiatrist, BostonFounded the Trauma Center in Brookline and spent four decades on how traumatic memory is stored in the body rather than as a story. His central claim is that talking alone often cannot reach what the body is holding.Appears in units 1, 2, 5, 12 and 20

trauma doesn't just change how you think. It physically reshapes the architecture of your brain.

Your prefrontal cortex, the part that does planning, reflecting, and pausing before reacting, shrinks under chronic stress. It gets harder to think clearly, to weigh consequences, to choose your words carefully. You're not losing intelligence. You're losing access to it.

Meanwhile, your amygdala, the brain's threat detector, becomes hyperactive. It starts scanning for danger constantly, even in safe moments. A door closing too hard. A certain look on someone's face. A silence that lasts a beat too long.

And it doesn't stay in your head. It moves into your body. Jaw pain. Stomach knots. Tension headaches that come and go for years without explanation. Chronic fatigue that no amount of sleep can touch. Numbness when you should feel something.

These aren't random symptoms. They're your body holding what your mind decided to put down.

Field noteFor years I carried tension in my jaw without knowing it. My dentist told me I was grinding my teeth down. I bought a night guard and called it solved. It wasn't solved. The jaw was holding something my mind refused to. My jaw clenched every time I was swallowing words. It was a thirty-year habit of keeping my mouth shut when it mattered most.

That's the section. Close this and put your feet on the floor.

What is in it

Twenty units. You can read them in order or open the one that matches the week you are having.

1
Welcome to Being HumanThe system you've been running without a manual.
2
Trauma: The Ghost in the MachineWhy you feel off even when everything looks fine.
3
The Canyon in Your HeadWhy knowing better doesn't make you do better.
4
The Chemistry of Being HumanWhy Tuesday felt impossible and Wednesday felt electric.
5
The Nerve Nobody Told You AboutWhy you can't think your way out of panic.
6
The Clock You Forgot You're Running OnSleep, light, rhythm, and the simplest thing you're not doing.
7
The Attention You LostHow modern life steals your presence, and what it costs.
8
Attachment: Why You Love the Way You DoThe blueprint you didn't know you were following.
9
Grief & LossThe weight your body carries when something ends.
10
BoundariesWhere your nervous system meets the world.
11
Connection & BelongingWhy your nervous system needs other people.
12
Coming Home to Your BodyMovement, food, and the relationship you've neglected longest.
13
Joy, Play & PleasureWhat your system feels like when it's working.
14
Purpose, Work & CreativityWhat you're here for, and how to survive figuring it out.
15
The Self You Built to SurviveWhat the ego actually is, and what it costs.
16
The Space Between SelvesWho you are between who you were and whoever comes next.
17
Fear, Control & UncertaintyWhy the unknown feels like danger.
18
Surrendering to the UnknownFaith, awe, mortality, and the intelligence of letting go.
19
Living With What You KnowYou've read the manual. Now what?
20
Closing Words: There Is No Finish LineJust a new way of being in your own skin.

Designed to be used less.

Every product you use is built to hold your attention. This book is about what that does to a nervous system. So the companion that comes with it has no streaks, no notifications, no endless scroll, and no reason to come back tomorrow unless you need it. Sessions end. That is the point.

If you want a person

Some of what is in the book is easier with somebody in the room. Mark coaches a small number of people, separately from the book and whether or not you ever read it. If you want someone to talk to rather than something to read, this is where that lives.

About the coaching

Where it stands

The writing	Finished. 67,000 words across twenty units, read by two independent editors, line edited, copyedited, and checked back against the original research.
The drawings	Not made yet. An illustrator is being hired, and the call is open.
The companion	Designed and not built.
A publisher	None yet. You are early, and that is the honest version.

Nothing here is behind a signup. Last updated August 2026.

Hear when it is out

Occasional notes on how the book is coming along. Nothing else.