Why is comparison a human instinct?

At some point in our lives, almost all of us have looked at someone else and quietly asked ourselves, “Why am I not like them?” This need to compare ourselves isn’t a character flaw or something we should be ashamed of—it’s deeply woven into who we are as humans.

Psychologist Leon Festinger noticed this pattern and developed what he called 'social comparison theory'. Essentially, he found that we naturally look to others to understand where we stand, especially when there’s no clear way to measure ourselves objectively. For our ancestors, this instinct was actually useful—it helped them pick up social cues, figure out what skills they needed, and find their place in the group.

The instinct itself isn’t the problem. It only becomes harmful when we stop using it to understand ourselves and start using it to beat ourselves up.

Upward vs. downward comparison

Researchers have identified two main ways we compare ourselves to others. Upward comparison happens when we look at people we think are doing better than us—more successful, happier, more together. Sometimes this can light a fire under us and push us to grow. But more often than not, it leaves us feeling like we’re falling short, envious, or doubting ourselves.

Then there’s downward comparison, where we look at people we think are struggling more than we are. This might make us feel better for a moment, giving us some reassurance that we’re doing okay. But it can also leave us feeling guilty or emotionally numb to others’ pain. Neither type of comparison is necessarily bad—what matters is how much we let these comparisons define how we see ourselves.

Social media and the illusion of better lives

Today, comparison isn’t just something that happens occasionally—it’s constant. Social media platforms are built around showing off and getting validation. We’re bombarded with the highlight reels of other people’s lives. Their wins look easy, their happiness seems endless, and their struggles? Nowhere to be seen.

Our brains weren’t designed to handle this kind of information overload. We end up comparing our messy, ordinary reality to someone else’s carefully filtered best moments. Over time, this messes with how we see ourselves. Our normal struggles start to feel like personal failures, and we become convinced that everyone else has it figured out while we’re just barely keeping it together.

What happens in the brain when we compare?

There’s actual science behind why comparison feels so intense. When we compare ourselves to others, our brains light up in areas tied to both reward and danger. When we feel like we measure up, we get a hit of dopamine—the feel-good chemical—which makes us want to keep comparing. But when we feel like we’re coming up short, our brains react as if we’re facing a threat.

If we’re constantly comparing ourselves—especially online—our nervous systems can get stuck in a low-grade state of alarm. This feeds anxiety, chips away at our self-esteem, and leaves us emotionally exhausted, even when we don’t realise what’s happening.

Comparison and the search for self-worth

For a lot of us, comparison is tangled up with our sense of identity. When we’re growing up, we learn our worth through external feedback—good grades, compliments, our appearance, and whether people approve of us. Over time, we internalise the idea that our value depends on how well we perform and how others perceive us.

When our worth feels like it comes from outside ourselves, comparison seems necessary. We start looking around us for answers to questions that can only really be answered from within: 'Am I enough?' Am I doing okay? Do I matter? Unfortunately, comparison almost never gives us the stable answers we’re looking for.

Why is comparison psychologically unfair?

Here’s the thing about comparison—it almost always leaves out the full picture. We all start from different places. Different families, different resources, different emotional histories. People are dealing with things we can’t see from the outside—mental health struggles, personal losses, and limitations they didn’t choose.

When we judge ourselves based only on what we can see of others’ results, we ignore all the effort, the resilience, the timing, and the luck involved. We reduce incredibly complex human lives to simple rankings, and then our minds trick us into thinking those rankings are the truth.

Breaking the cycle with awareness and self-compassion

The goal isn’t to stop comparing ourselves altogether—that’s probably not realistic. Instead, it’s about changing our relationship with comparison. The first step is just noticing it. When does it happen? What triggers it? How does it make you feel?

The second step is treating yourself with compassion. Research shows that when we’re kinder to ourselves, we feel less envious and bounce back from difficult emotions more easily. Self-compassion softens that harsh inner voice that’s always judging.

Try modifying the question from “Where do I rank?” to “What actually matters to me?” This creates an anchor inside yourself rather than constantly looking outside. Growth becomes about your own journey, not about winning some imaginary competition.

Choosing your own measure

Comparison isn’t a weakness or a sign that something’s wrong with you—it’s just part of being human. But your mental health and peace of mind grow when you remember that your worth isn’t determined by how you stack up against someone else’s life or timeline. You’re not here to become a better version of someone else. You’re here to become a more authentic version of yourself, shaped by your own pace, your own experiences, and your own inner truth.