self growth Archives - Dr. KarenTurnerPhD

Your Roots Run Deep: What Microchimerism Teaches Us About Connection, Aging, and Legacy

Karen Turner — Wed, 03 Jun 2026 14:17:38 +0000

Scientists have discovered something remarkable: during pregnancy, cells pass between a mother and her baby, and researchers have found that some of these cells remain in the body for decades rather than disappearing after birth. The science of microchimerism suggests that the people who shape us never completely leave us, biologically or emotionally. That idea has as much to say about psychology and legacy as it does about biology.

What Is Microchimerism?

The phenomenon is called microchimerism. The name comes from Greek mythology and refers to the presence of a small number of cells that originated from another person. Researchers have found maternal cells in adult children and fetal cells in mothers many years after pregnancy. The science is fascinating, and the implications are even more so. As researchers continue to study microchimerism, many of us find ourselves drawn not only to the biology but to the deeper question it raises: what does it mean to carry pieces of another person throughout our lives?

Are We More Connected to Each Other Than We Realize?

Most of us think of ourselves as independent individuals, yet from the moment we are born, our lives are shaped by countless influences. We carry family stories, traditions, and values. We carry lessons learned through love, hardship, success, disappointment, resilience, and recovery. Microchimerism suggests that some of us may literally carry tiny physical traces of those who came before us. Whether those cells remain active or simply persist as biological remnants is still being studied, but the idea itself is powerful: perhaps none of us travel through life alone.

How Does Being “Shaped” by Others Show Up Psychologically?

As a psychologist, I have spent much of my career helping people understand how their past influences their present. Our childhood experiences matter. Our relationships matter. The people who encouraged us matter, and so do the people who hurt us and the people who believed in us. Even decades later, those experiences continue to shape how we think, feel, and respond to the world.

Microchimerism offers a fascinating biological parallel to something psychologists have long understood: the people who shape us never completely leave us. Their influence continues long after specific moments have passed. We may not consciously think about those influences every day, but they remain part of our story.

Is Aging About Starting Over, or Something Else?

One of the messages I return to often in 77 and Still Standing is that aging is not about becoming someone new. It is about becoming more fully yourself. Popular culture often encourages reinvention, but many of us do not need reinvention. We need recalibration: recognizing the strengths, wisdom, resilience, and experiences we have already accumulated. Our history is not a burden. It is a foundation. Like the roots of a tree, much of what sustains us lies beneath the surface. You may not see your roots every day, but they are there, supporting you, steadying you, and helping you continue to grow.

What Do Your Roots Actually Represent?

The image accompanying this article shows a tree with roots labeled:

Love
Family
Wisdom
Lessons
Challenges
Friendships
Strength

Those roots represent far more than biology. They represent the people and experiences that have shaped us. Some roots were formed through joy, others through loss. Some came from triumph, others from adversity. Yet all of them contribute to who we are today. The older I get, the more convinced I become that resilience is not something we suddenly acquire. It develops over time, growing from the roots we have spent a lifetime building.

Does Our Influence on Others Continue After We’re Gone?

Perhaps the most beautiful aspect of microchimerism is the possibility that our connection to others extends across generations. Researchers are even exploring whether cells may pass from grandmother to mother to child. Whether future studies confirm every aspect of that possibility remains to be seen, but the larger truth is already evident: we influence one another across generations, decades, and families. The love we give, the lessons we teach, the values we model, and the encouragement we offer do not end with us. They travel forward, carried by children, grandchildren, friends, students, neighbors, and countless others whose lives we touch.

They shape us. They stay with us. They travel forward through us. And perhaps that is one of the greatest lessons of aging: your roots run deep, your story continues, and there is still more to be written and carried forward.

Aging Is Not a Straight Line: Why a Nimble Mind Matters More Than Ever

Karen Turner — Sat, 23 May 2026 21:18:36 +0000

Most of us grow up believing life moves in a straight line: from goal to goal, one steady climb. Then life happens, and we discover something else entirely. Aging is less like a highway and more like a maze: full of detours, dead ends, and unexpected openings, and the healthiest minds are the ones willing to keep searching for another path.

This article opens our Nimble Mind Series, three pieces exploring how curiosity, cognitive flexibility, and a willingness to keep exploring shape healthy aging.

Why Doesn’t Life Move in a Straight Line?

Because growth was never meant to be linear. There were detours, delays, unexpected losses, relationships that changed shape, and versions of ourselves we never anticipated becoming. At some point, most adults realize life is far more like a maze than a highway: you move forward, hit a dead end, double back, pause, regroup, and discover another opening. That is especially true in the second half of life, and it is why the image of a maze feels strangely symbolic, not simply as a brain challenge, but as a reflection of life itself.

What Is Cognitive Flexibility, and Why Does It Matter After 50?

Cognitive flexibility is the brain’s ability to adapt, reconsider, shift perspective, and remain open to new possibilities. It is one of the most important components of emotional resilience and healthy aging. A nimble mind does not become rigid, does not assume there is only one way forward, and stays curious enough to keep exploring. Contrary to cultural stereotypes, this kind of flexibility can keep developing throughout life. The human brain retains remarkable adaptability well into older adulthood, and neuroscience increasingly supports the idea that it remains capable of forming new neural connections through continued engagement and stimulation.

That matters enormously, because many people unconsciously begin shrinking psychologically as they age, not because they are incapable, but because they quietly stop challenging themselves. Life becomes repetitive, predictable, emotionally narrow. The brain thrives on novelty, conversation, creativity, problem solving, exploration, and reflection.

Even something as deceptively simple as a maze activates multiple cognitive functions at once:

Attention
Planning
Visual scanning
Problem solving
Persistence
Adaptability

And perhaps most importantly: patience, because not every path immediately works. That lesson extends far beyond puzzles.

Does Later Life Get Psychologically Harder, or Richer?

Many adults spend years believing they must have life completely figured out by a certain age. Real life rarely operates that way. Relationships shift, careers change, families evolve, bodies change, priorities change, identity changes, and sometimes the very things that once defined us no longer fit. That can feel disorienting. Yet there is also freedom in recognizing that growth does not end simply because youth ends. In many ways, later life can become psychologically richer. People often become:

Less performative
Less concerned with external approval
More emotionally honest
More reflective
More aware of what truly matters

The challenge is remaining mentally engaged enough to continue evolving, because the opposite of a nimble mind is not aging. It is rigidity. Rigidity says, “This is just how I am.” A nimble mind asks, “What else might still be possible?”

What Can a Maze Teach Us About Emotional Resilience?

There is something quietly comforting about mazes: they remind us that confusion is not failure, and a wrong turn is not the end. Sometimes the brain learns through trial and error, through adjustment, through persistence, and that is true emotionally too. Many people arrive in the second half of life carrying years of accumulated emotional habits, including:

Over-caretaking
People pleasing
Chronic self-neglect
Avoidance
Fear of disappointing others

Eventually they realize those old pathways no longer lead where they want to go, so they begin searching for another route: a healthier one, a calmer one, a more authentic one. That process can feel uncomfortable at first, but growth often does. The brain develops through challenge, not stagnation.

Can Wisdom and Curiosity Coexist?

Yes, and one of the most hopeful truths about aging is that they coexist beautifully. People sometimes assume curiosity belongs only to the young, but some of the most emotionally intelligent, insightful, and psychologically alive individuals are older adults who never stopped questioning, learning, observing, and growing. A nimble brain is not necessarily the fastest brain. It is the brain willing to remain open: open to change, open to discovery, open to revising old assumptions, open to seeing life differently. That openness matters deeply in a world that constantly changes around us, and it is part of why simple challenges like the optical illusions in this series resonate so strongly. They gently remind us that the mind still wants to explore, still wants to solve, still wants to find a way through.

What Does Healthy Aging Actually Look Like?

The goal of healthy aging is not perfection. It is engagement: not becoming smaller emotionally or intellectually, not disappearing quietly into routine and predictability, but remaining mentally present to life. Curious. Flexible. Reflective. Alive. Aging is not a straight line, and sometimes the most meaningful growth happens after we stop expecting life to move in one.