I Have Lived Four Lives. My Forties Are All of Them at Once.

I have not lived one life. I have lived four of them, one per decade, and somewhere around my forty-fifth birthday I noticed I am now living all four at the same time.

That sounds like something printed on a throw pillow, so let me earn it.

Four Decades, Four Centers of Gravity

My first ten years were about my family. Mom, Dad, the kitchen table, the house. At that age, nothing outside the front door matters nearly as much as what happens inside it. I have written about both of my parents, about my mom, who made everyone she met feel like family, and about my dad and a breakfast with John Wooden. Looking back, that first decade was the foundation everything else got built on, and I had no idea it was happening.

The next ten years were about my friends. Every teenager knows this shift. The center of gravity leaves the house and lands on the people you choose. For the first time, loyalty is a decision rather than an assignment. Some of the friendships I chose in those years, and in the years right after, became the kind you eventually stand up and eulogize.

My twenties were about discovering myself. What did I actually believe? What was I willing to build? I started a property business at twenty-four, which is either brave or naive, and at twenty-four those are the same thing. That decade was selfish in the healthy sense of the word. You cannot give yourself to anything until you know what you are giving.

My thirties were about starting a family of my own. Marriage, a daughter, a house, a whole new set of priorities that put me somewhere around fourth in line. It was the decade I learned that fathers eat even later than leaders do, and the decade that handed me one day with three disasters in it to make sure I understood what mattered.

Four decades, four centers of gravity. Each one had a clear priority. Each one, in hindsight, made sense.

Then the Forties Showed Up

Now I am halfway through my forties, and there is no single center anymore. It is all four at once.

I have my own family: a seven-year-old and a four-year-old, a marriage that needs deliberate tending, and a schedule that would embarrass an air traffic controller. I have my family of origin, which looks different now that my mom is gone and my dad is the one I check on. I have friends, who no longer get a whole decade but who matter more than ever precisely because they are the first thing to get squeezed. And I have myself: the writing, the running, the businesses, the questions I still have not answered.

I am not special in this. Pew Research has found that more than half of Americans in their forties have a parent 65 or older while also raising or supporting a child of their own. Forties is the peak age for it. If you are reading this at my age and feeling stretched in every direction, the data says you are not failing. You are just forty-something.

The Decades Were Not Separate Lives. They Were an Apprenticeship.

Here is what I think is actually going on, and it is the reason I am more grateful than tired.

Those four decades were not four disconnected lives. Each one taught a single skill, and the forties are where you finally have to use all of them together.

• Family taught belonging. You are loved before you have done anything to earn it. That is the floor you stand on for the rest of your life.
• Friends taught chosen loyalty. Showing up for people you are not obligated to show up for.
• Your twenties taught self-knowledge. Knowing what you believe, so you are not blown around by whoever spoke last.
• Your thirties taught responsibility. Someone else eats first, and you are fine with it.

The forties are the final exam. All four subjects on one test, and nobody tells you which question comes next. On a single Tuesday I might coach a field full of four-year-olds, call my dad, answer a friend who needs advice, sit down to write, and still owe my wife a real conversation before bed. That is not chaos. That is every lesson from every prior decade getting called on in the same afternoon.

It explains why this stretch of life feels like both the fullest and the most stretched. It is full because nothing is missing. It is stretched because nothing gets your undivided attention anymore.

The Honest Objection

The skeptic in me has to raise a hand here, so I will raise it for him.

Maybe I am telling a tidy story after the fact. Memory is an editor, not a stenographer. My twenties were not purely about me; I had family and friends the whole time. My thirties were not purely about my kids. Real life does not arrive in ten-year chapters with clean headings. I am imposing a pattern because humans love patterns, and a man in his forties loves one even more.

All of that is true, and I concede it. But the statistician George Box had the right answer to this: all models are wrong, some are useful. The question is not whether the decade framework is a perfect record of my life. It is not. The question is whether it helps me decide what to do next. It does, because it tells me exactly what neglect looks like in each of the four lives, and that turns out to be the most practical thing about it.

What It Asks of Us

The danger of the forties is that each of the four lives gets about a quarter of you, and each one notices. Your kids notice when you are physically present but somewhere else. Your parents notice when the calls get shorter. Your friends notice when “we should get together” becomes the whole relationship. And you notice, usually at two in the morning, when the person you spent your twenties discovering has quietly stopped growing.

So here is what I have landed on.

Put all four on the calendar. Not just the kids’ games and the work meetings. Date nights, the call to Dad, the standing lunch with a friend, the hour to write. What is not scheduled in the forties does not happen, and good intentions are not a plan.

Protect the friendships on purpose. Friends are the first line item cut from a busy life because they are the only one of the four that will not complain about it. That silence is not consent. It is drift.

Do not mistake self-maintenance for selfishness. Leaders eat last, but they still eat. The person you built in your twenties is the one your family, your parents, and your friends are counting on. Let him go soft and all four lives pay for it. I wrote about this in Compete Against Yourself Today, and it holds double at forty-five.

Start handing it forward. The fifth life is coming whether you prepare for it or not: the decade where the people you raised and mentored start living their own four lives. The best preparation is the kind of quiet mentoring I described in Leading from Behind. It starts now, on the soccer field and in the classroom and at the dinner table.

Where You Came From, Where You Are, Where You Are Going

On my thirtieth birthday, my mom gave me a carved plaque with a mantra I had written years before:

“Remember where you came from, appreciate where you are, focus on where you’re going.”

At thirty, I read that as three separate instructions, one for the past, one for the present, one for the future.

At forty-five, I read it as one. Remember where you came from: your family, and the friends who stood with you. Appreciate where you are: the person you became and the family you built. Focus on where you are going: the people who will carry it forward.

I have lived four lives. My forties are the first decade where I get to live them all at once.

It is exhausting. I would not trade a single minute of it.

Nicholas J. Nicastro, Powell, OH. October 20, 2026.