Empathy develops through a combination of built-in brain wiring, childhood experiences, and ongoing social learning that continues well into adulthood. It isn’t a single skill but two distinct capacities: the ability to feel what someone else feels (affective empathy) and the ability to understand what someone else thinks or believes (cognitive empathy). These two forms rely on different brain networks, mature on different timelines, and can be strengthened independently throughout life.
The Brain’s Built-In Empathy Hardware
Empathy starts with a class of brain cells called mirror neurons. These neurons fire both when you perform an action and when you watch someone else perform the same action. In humans, mirror neuron activity has been detected across a wider network than originally expected, including the premotor cortex, the primary touch-processing area, and regions of the parietal cortex. This network doesn’t just help you understand movements. It helps you feel them. When the touch-processing areas activate while you’re watching someone else move, your brain simulates what it would feel like to move that way yourself.
This mirroring extends to emotions. In one brain-imaging experiment, people who smelled something disgusting activated a specific region called the anterior insula. When a separate group simply watched video clips of people making disgusted faces, the same brain region lit up. Similar overlap has been found with pain: watching a loved one in a painful situation activates circuits that overlap with your own pain response. Feeling an emotion and observing that emotion in someone else share neural real estate, which is the biological foundation of empathy.
Two Types of Empathy, Two Brain Networks
Affective empathy, the gut-level sharing of another person’s emotion, runs through a network connecting the insula, amygdala, and orbitofrontal cortex. These are deep emotional processing areas. People who lean heavily on affective empathy show stronger connections between these regions at rest, meaning their brains are wired for emotional resonance even when they aren’t actively empathizing with someone.
Cognitive empathy, the intellectual ability to figure out what someone else is thinking or feeling, relies on a different set of connections. It involves areas associated with social reasoning and body-state monitoring, including the superior temporal sulcus and brainstem circuits. Damage to the prefrontal cortex selectively disrupts cognitive empathy while leaving affective empathy intact. Conversely, damage to the amygdala or the insula disrupts affective empathy without necessarily touching cognitive empathy. These two systems can break independently, which confirms they develop and operate as separate capacities.
Hormones also play a role. Oxytocin, often associated with bonding, primarily shapes the cognitive-perceptual side of empathy. It appears to work by decoupling default brain connections, which may free up neural resources to pay closer attention to social cues. Its effects are most pronounced in visual and perceptual processing, helping you read another person’s situation more accurately.
How Empathy Emerges in Childhood
The seeds of empathy appear surprisingly early. Newborns cry in response to other babies crying, a reflexive emotional contagion that represents the most primitive form of affective empathy. By 8 to 12 months, infants begin engaging in joint attention: alternating their gaze between an object and another person, pointing, showing, or reaching to share an experience. This behavior turns out to be a strong predictor of later empathy. Research tracking children from infancy to preschool found that babies who more frequently initiated joint attention with an unfamiliar adult at 8 to 12 months went on to score higher on measures of mental state understanding by age 3.
By age 2, most children notice when others are hurt or upset. They pause, look sad, or watch when someone is crying. They also start checking a caregiver’s face to gauge how to react in unfamiliar situations, a behavior called social referencing. At this stage, children play alongside each other rather than cooperatively, and they don’t yet understand sharing or turn-taking without guidance. These are building blocks, not finished skills.
The bigger cognitive leap happens during the preschool years, when children develop what psychologists call theory of mind: the understanding that other people have thoughts, beliefs, and knowledge that differ from their own. This is typically tested with false belief tasks, where a child must predict what someone else will do based on information that person has, even when the child knows something different. Success on these tasks marks the arrival of genuine cognitive empathy, the ability to step outside your own perspective.
The Adolescent Rewiring Period
Empathy doesn’t follow a smooth upward curve through the teenage years. Adolescence brings a massive neural renovation, particularly in the prefrontal cortex, which handles impulse control, judgment, and social reasoning. Brain imaging shows that teenagers use their prefrontal cortex less than adults during interpersonal interactions and decision-making. Instead, they rely more heavily on emotional brain regions, which leads to more impulsive, less measured interpretations of social situations.
This helps explain why teenagers often misread other people’s emotions. It isn’t a lack of caring but an imbalance in the tools available. The emotional empathy system is largely online, but the cognitive machinery needed to regulate that emotional input and accurately interpret social cues is still under construction. The brain’s social cognition networks continue developing late into adolescence, and the plasticity that allows teenagers to learn and adapt also makes them more vulnerable to misjudging complex social situations.
Empathy Keeps Developing in Adulthood
The adult brain retains enough plasticity to meaningfully strengthen empathy through deliberate practice. A study using brain imaging before and after targeted empathy training found that the training increased both self-reported empathy scores and activation in key brain regions, including the insula and a midline area involved in processing others’ pain. These activation changes overlapped with regions identified in large-scale analyses of empathy for pain, suggesting the training was genuinely engaging empathy circuits rather than producing a placebo effect.
Interestingly, the study also found that empathy training initially increased negative affect. Feeling more of what others feel can be emotionally costly. A subsequent round of compassion training, focused on generating warmth rather than simply sharing distress, activated a different set of brain areas associated with reward and positive emotion. This suggests that sustainable empathy development in adults involves not just opening up to others’ pain but also building the capacity to respond to it with care rather than overwhelm.
How Everyday Experiences Shape Empathy
Reading fiction is one of the most studied everyday empathy builders. Experiments have shown that reading a fictional story increases empathy over the course of a week, but only when readers become emotionally transported into the narrative. People who read the same story without becoming absorbed showed no empathy gains, and people who read nonfiction showed no change regardless of engagement level. Fiction works as a social simulation: you practice inhabiting other perspectives, anticipating characters’ reactions, and feeling their emotional stakes. The key ingredient isn’t the reading itself but the depth of imaginative involvement.
Parenting practices matter enormously during childhood. Children whose caregivers label emotions, explain how others might feel, and model empathic responses develop stronger empathy skills than children in environments where emotions are dismissed or ignored. The simple act of narrating social situations for a toddler (“She’s crying because she fell down, that hurt”) builds the cognitive scaffolding for perspective-taking years before a child can do it independently.
Empathy Trends Across Generations
A widely cited 2011 study found that U.S. college students in 2009 scored 40% lower on empathy measures than students in the late 1970s, sparking widespread concern about an empathy crisis among young people. But an update to that same research, published in 2024 by the same lead researcher, tells a different story. Both cognitive empathy (perspective-taking) and affective empathy (empathic concern) increased among young Americans between 2008 and 2018, nearly returning to the highs of the 1970s. Late Millennials and Gen Z scored meaningfully higher than the generation that prompted the original alarm, suggesting that empathy levels are not fixed cultural traits but shift in response to broader social conditions.