Politics, Stress, the Brain, and Core Emotions

As a person who has immediate family members with diametrically opposing views on politics, I struggle to understand how we could possibly be having such different reactions to the events unfolding in our country. I do my best to focus on our warm and fuzzy familial connections, rather than our differences, and this allows me to avoid the arguments and conflict that drive more polarization. But this is challenging. And heartbreaking at times. More than ever, we need to become mindful of what’s unfolding around us and have tools to navigate the stresses this creates in our relationships with loved ones.

Let’s face it: Political conversations are getting more heated than ever.

Whether it’s around the dinner table or online, we’re often left wondering—how can people see the same world so differently? As a neuroscientist, sex therapist, and psychotherapist, I find it fascinating (and alarming) how polarized our political landscape has become.

But here’s the good news: Neuroscience is giving us real insights into why our political beliefs feel so deeply ingrained—and they might just start with the oldest parts of our brains.

Now, before we dive in, an important caveat: While research reveals measurable differences in the brains of liberals and conservatives, scientists emphasize that we don’t yet know whether these brain differences cause political leanings, or if political beliefs and life experiences shape the brain over time. The relationship is likely bidirectional, influenced by a combination of genetics, environment, upbringing, and exposure to different experiences.

So, with that in mind, let’s explore how politics, emotions, and brain wiring intersect—and how understanding this can help us find common ground.

What are the brain differences between liberals and conservatives?

Let’s start with what the science does show. Multiple studies suggest that conservatives tend to have larger amygdalae—that almond-shaped structure deep in the brain that serves as our built-in alarm system. It helps us detect threats, react to fear, and prepare to defend ourselves. Bigger amygdala, bigger reactions to danger.

Functionally, conservatives often show more amygdala activation when making risky decisions or viewing threatening images. In contrast, liberals' brains tend to activate areas like the anterior cingulate cortex (ACC) and posterior insula—regions associated with empathy, emotional awareness, and openness to new experiences.

Even the body responds differently: Conservatives often display stronger physiological startle reactions to fear-inducing images or sudden noises. These patterns suggest that political orientation might reflect a broader emotional style—but, again, whether this style shapes brain function or emerges from it remains unclear.

Enter Panksepp’s emotional brain: the 7 core systems

This is where Jaak Panksepp’s groundbreaking work comes in. He is the founder of the field of affective neuroscience, the science of emotion. He identified seven primary emotional systems hardwired into the mammalian brain:

1. Seeking: Curiosity, motivation, exploration
2. Rage: Anger, frustration
3. Fear: Anxiety, threat detection
4. Lust: Sexual excitement
5. Care: Nurturance, bonding
6. Panic/grief: Separation distress
7. Play: Joyful social interaction

These ancient circuits drive our behaviors, shaped by temperament, experience, and biology. And, yes, they may help explain why we resonate with certain political ideologies.

Political ideology as a reflection of core emotional dominance

Let’s connect some dots.

Conservatives may have a more active fear system. A larger or more reactive amygdala could lower the threshold for detecting threat, explaining heightened sensitivity to danger cues like law and order, national security, or rapid social change. These differences are small but robust and have been replicated in newer studies.

Liberals, on the other hand, may lean more heavily on the seeking and care systems. Greater activity in the ACC and insula points to increased openness, empathy, and tolerance for complexity and ambiguity. This might align with liberal values like inclusion, social justice, and systemic reform. These results have not been as readily replicated as the findings on the differences in the size and reactivity of the amygdala, so future research is indicated (if they can get funding these days). Remember, science is self-correcting and is based on facts, not beliefs.

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But let’s underscore this again: This isn’t destiny. We are not simply the sum of our neural wiring. Brain structure and function are shaped by both our genes and our lived experiences. Political beliefs might reinforce certain brain circuits over time, while innate traits may draw us to certain ideologies. The interplay is dynamic, not fixed.

The outgroup factor: why we demonize “them”

Here’s one of the most powerful—and concerning—findings: Our political brains respond differently to outgroups.

When we encounter people outside our ideological tribe, our brains—especially the amygdala and the bed nucleus of the stria terminalis (BNST)—light up in ways that signal discomfort, threat, or distrust. And this response is often stronger when facial expressions are ambiguous, leading us to misinterpret neutral faces as hostile.

Conservatives may show stronger threat reactivity here, but no one is immune. Once the rage system gets activated—especially when fueled by chronic stress or social media outrage—we can quickly shift from anxiety to aggression. No wonder political conversations can feel like combat zones.

Can understanding our emotional brains help us heal?

Yes, it can—and it must.

Recognizing that political ideology is at least partly rooted in biology (and biology shaped by experience) invites us to replace judgment with curiosity. Instead of asking, “How could they believe that?” we can ask, “What emotional experience—or neural wiring—might be behind that belief?”

Even more empowering: The brain is plastic. It changes. Practices like mindfulness, social connection, novelty-seeking, and even pleasure can reshape our emotional responses. Panksepp’s play and lust systems—far from frivolous—are powerful antidotes to fear and rigidity. For some tools to navigate fear to promote pleasure, click here.

And when we intentionally engage with people who see the world differently—when we play together, laugh together, create together—we build bridges not just socially, but neurologically.

Bottom line: We’re not just political animals; we’re emotional animals

Politics isn’t just about positions—it’s about people. And people are deeply emotional creatures, shaped by core affective systems that evolved long before we knew what “left” or “right” even meant.

Understanding these emotional systems—and how they interact with the brain’s threat and reward circuits—can help us see that political polarization is more than just stubbornness. It’s about safety, belonging, identity, and how our brains are wired to navigate all of that.

So, the next time you’re baffled by someone’s political views, pause and breathe. Their brain may be telling a different emotional story. But the good news is—we can all write new chapters. Together, we can prevail. Above all, human beings thrive with connection. Let's do this consciously and mindfully. Connection is medicine.