Is It My Mind...My Body...or Both?

Why our thoughts and our biology are always having a conversation.

If you've been following along through the first few essays, you may have noticed something interesting. We've explored the feeling that something is missing, questioned whether anything is actually "wrong" with us, considered why success doesn't always bring fulfillment, learned that our brains are doing exactly what they evolved to do, and discovered that many of the stories we tell ourselves were learned long before we were old enough to question them.

At this point, it's tempting to conclude that everything happens in the mind and for many years, that's exactly what I believed. If I felt anxious, I assumed I needed to think differently. If I felt unmotivated, I decided I lacked discipline. If I felt emotionally flat, I wondered what limiting belief I hadn't uncovered yet. Like many people, I believed that if I could simply change my thoughts, everything else would eventually fall into place. There is certainly some truth in that idea. Our thoughts matter. The stories we tell ourselves matter. The way we interpret our experiences influences how we feel. But over the past several decades, scientists have uncovered something equally important. Our bodies are participating in that conversation every moment of every day.

This may seem obvious, yet it's surprisingly easy to forget. We often talk about the mind and the body as though they are two separate systems, one giving orders while the other quietly follows along. Modern research paints a very different picture. The brain, nervous system, hormones, immune system, digestive system, and even the trillions of microorganisms living in our intestines are constantly exchanging information. Rather than existing as separate departments, they function more like members of an orchestra, each influencing the others in ways we are only beginning to understand.

Think about how different the world looks after a terrible night's sleep. The same email that seemed manageable yesterday suddenly feels overwhelming. Small inconveniences become major frustrations. Patience disappears. Motivation evaporates. Nothing in your life has actually changed overnight. Your biology has.

Or think about the last time you had the flu. You probably weren't just physically tired. Your mood changed. Your ability to concentrate changed. Even your interest in the things you normally enjoy may have disappeared for a while.

Again, your thoughts didn't create those changes. Your body influenced your thoughts.

The relationship works in the opposite direction as well. Most of us have experienced moments when worry caused our stomach to tighten or when embarrassing ourselves made our face turn red. A stressful season at work may lead to headaches, poor sleep, muscle tension, or digestive problems. Our thoughts affect our bodies just as surely as our bodies affect our thoughts. The conversation is always moving in both directions.

This is one of the reasons I become cautious whenever I hear someone claim they've found the answer. Some people insist everything is psychological. Others believe every problem can be traced to nutrition, hormones, inflammation, and gut health. Still others believe the answer lies entirely in spirituality.

Real life is rarely that simple. Sometimes anxiety has a psychological origin. Sometimes it begins with chronic stress, poor sleep, medication, thyroid disease, menopause, nutritional deficiencies, or another medical condition. Sometimes several of those things are happening at the same time. Human beings are wonderfully complicated.

That complexity isn't frustrating to me anymore. I actually find it reassuring. It reminds me that there are many different doors into healing. For women especially, this conversation becomes even more important during midlife. Hormonal changes can influence mood, energy, sleep, memory, and motivation in ways that are profound yet often misunderstood. Too many women are told that what they're experiencing is "just stress" or "just getting older," while others assume every change must be hormonal. The truth usually lies somewhere in between.

Hormones matter. They are not the entire story. The same is true for nutrition. Chronic inflammation, vitamin deficiencies, blood sugar fluctuations, thyroid function, physical activity, and sleep quality all influence the chemistry that shapes our daily experience. None of these factors determines our destiny, but each deserves consideration before we conclude that our struggles are purely a matter of mindset.

One of the biggest shifts in my own thinking came when I stopped asking whether something was "all in my head."

Instead, I started asking a different question: "What might my mind and my body be trying to tell me together?" That question opened far more doors. It encouraged me to become curious instead of choosing sides. Sometimes the answer involves changing a habit. Sometimes it involves talking with a physician. Sometimes it involves getting more sleep. Sometimes it involves addressing an old emotional pattern. Most often, it involves a little of each.

Perhaps that's the lesson. We don't have to choose between science and self-reflection. Between psychology and physiology. Between the mind and the body. They have been partners all along. The more we understand that partnership, the more compassionate—and effective—we can become in caring for ourselves.

What We Know

Researchers now understand that the brain, nervous system, hormones, immune system, and digestive system constantly communicate with one another. Sleep, nutrition, movement, stress, illness, and hormonal changes all influence mood, memory, attention, and emotional well-being. Likewise, chronic stress and emotional experiences can affect physical health.

What We're Still Learning

Scientists continue exploring exactly how these systems interact and why people respond so differently to similar circumstances. Genetics, lifestyle, environment, and life experiences all play important roles, and there is still much we don't understand about the complex relationship between physical and emotional health.

Looking Deeper

One of the most freeing ideas I've encountered is that curiosity doesn't require certainty. For years I searched for the one missing piece that would explain everything. Was it my mindset? My health? My habits? My hormones? Now I suspect life isn't asking us to choose one explanation. It's asking us to become better observers. The more willing we are to look at ourselves as whole human beings rather than isolated parts, the more compassionate—and more effective—our search becomes.

Try This

The next time you're feeling unusually anxious, discouraged, or overwhelmed, pause before assuming you know the cause. Ask yourself: "How has my body been doing lately?" Have you been sleeping well? Eating regularly? Moving your body? Feeling unusually stressed? Recovering from an illness? Instead of looking for one answer, simply begin noticing the conversation between your mind and your body. You may discover they have been trying to help each other all along.

A Question to Carry With You

If your mind and your body have been working together all along, what might change if you started listening to both?

Continue the Journey

Understanding that our thoughts and biology work together naturally leads to more hopeful possibilities:

Next Article: Why Your Brain Is More Changeable Than You Think

Because if our brains and bodies are constantly adapting, perhaps change is more possible than we've been led to believe.