There is a sentence couples say to each other often, in some version: that is just how he is. Or that is something she got from her mother. Temperament and family history — the two familiar shoulders of the nature versus nurture debate, popularized by Francis Galton in 1869. He was an English polymath, statistician, and also the cousin of Charles Darwin. The question has never fully settled since. The debate has narrowed in 156 years. The way it shows up between two people in a long relationship has not.
For couples, the more useful question may be neither which side wins, nor how the percentages split. It may be what gets built next, regardless of where any of it started.
What does nature refer to in the nature vs. nurture debate?
Nature, in this context, refers to what is inherited — the genes passed from one generation to the next, the temperamental tendencies that show up early and tend to persist. A person’s baseline level of stress reactivity, social orientation, sensitivity, intensity. The argument behind the nature side has long been that significant features of personality and behavior are written, in some measure, before any environment has a chance to weigh in.
Twin studies — particularly studies of identical twins raised apart — have lent weight to this view. So has, more recently, behavioral genetics. The estimates vary, but most converge somewhere around the suggestion that personality traits are moderately heritable.
What does nurture refer to in the nature vs. nurture debate?
Nurture refers to environment — the home a person grew up in, the relationships modeled in front of them, the cultural and economic conditions, the experiences that shaped expectations. The nurture side has historically argued that human behavior is, to a meaningful extent, a product of context. Change the context, change the person.
Modern research has complicated both extremes. Epigenetics suggests that early environments can influence how inherited genes are actually expressed. The clean either/or has, in most quarters, given way to a more interesting and less tidy both, interacting.
Nature vs Nurture Examples in Relationships
The lived examples are familiar. A partner whose mother was anxious in conflict may move into a similar response under stress — nurture, perhaps, doing some quiet inheriting of its own. A partner whose family avoided difficult topics may find them harder to raise as an adult. Genetically influenced traits — neuroticism, openness, sensitivity — may shape what either partner finds easy and what feels effortful.
Often, both lines of explanation are true at once. A specific habit may be partly inherited, partly modeled, partly a response to a moment that has long since passed. In Gottman’s vocabulary, these inherited and learned differences often show up as perpetual problems — what his research has long suggested account for the majority of what most couples argue about — and as enduring vulnerabilities, the older sensitivities each partner brings into the relationship, sometimes without meaning to.
What may matter most, over the long arc of a relationship, is what neither nature nor nurture alone accounts for: the patterns each couple builds with each other. The way one partner learns to ask for what they need. The way the other learns to receive it. Small things, repeated.
One of Dr. Gottman’s more reassuring findings, especially for couples carrying long-standing differences, is this: you do not have to resolve your perpetual problems for your relationship or marriage to thrive. His work has produced practical, research-backed tools for managing those differences, and his research over more than fifty years suggests that this interactional layer — managing rather than solving, building rather than fixing — is consistently what predicts how couples fare over time.That, in turn, is where the work of emotional literacy begins. Naming feelings. Understanding a partner’s. Building a shared language for the difficult ones. The Gottman Institute’s free emotional literacy guide is one place to start.
