Skip to main content
Blog

Accumulation – Remains of Our Ancestors

Katarzyna Mazur

Katarzyna Mazur

2026-03-17
5 min. read
Accumulation – Remains of Our Ancestors
51 views
There is no doubt that aggressive behaviors can cause significant damage. Violence that strikes another human being is always worthy of condemnation. One may wonder, where did the predisposition for such behavior come from in us, humans? What are their physiological foundations?

The evolutionary roots of aggression: survival mechanisms from prehistoric times to the modern era

The scientific discipline known as evolutionary psychology focuses on a comprehensive examination of the human mind, encompassing all its functional and structural dimensions. Its primary objective is to elucidate the mechanisms governing brain function, identify universal traits characteristic of *Homo sapiens*, and interpret recurrent behavioral patterns observable across human populations. A foundational premise of this field posits that the contemporary human mind has not been shaped by the environmental conditions of modern civilization but rather retains an architectural framework established during prehistoric times, when survival was the paramount imperative. Primitive humans operated within an environment dominated by relentless competition for resources, where each day presented an unceasing struggle against wild predators, natural hazards, and rival groups. Their cognitive systems evolved to optimize processes related to food procurement—hunting game, gathering edible plants—as well as threat avoidance and the fulfillment of reproductive instincts. Life in those times was characterized by a simplicity of purpose: the satisfaction of basic physiological needs drove most behaviors. The modern world, with its intricate social structures and technological advancements, differs radically from the realities of the Pleistocene era. Today, we no longer need to hunt to secure our meals; supermarkets provide unrestricted access to a vast array of food products. Despite these profound transformations over millennia, our minds have retained their primordial structure, remaining largely consistent with the psyches of our ancestors, for whom social conventions and cultural norms held little significance. As a consequence of this evolutionary legacy, many behaviors that once played a critical role in survival have now lost their adaptive value and, in some cases, have become outright dysfunctional. Aggression serves as a prime example of such an anachronistic pattern. In the animal kingdom, aggressive interactions constitute one of the fundamental mechanisms of natural selection, facilitating dominance within groups, access to mates, and control over territory and resources. Males of numerous species engage in brutal contests for reproductive rights, where the victor gains not only a genetic advantage but also enhances the survival prospects of his offspring. In humans, aggression manifests in analogous contexts, albeit in more diverse and often covert forms. While we consider ourselves a highly civilized society where overt acts of violence are condemned and penalized, aggressive tendencies have not disappeared—they have merely been transformed. Empirical observations indicate that outbreaks of aggression most frequently occur in situations involving competition for resources critical to survival and reproduction: access to sexual partners and control over material wealth. In men, impulsive aggressive reactions are particularly pronounced in specific circumstances, such as suspicions of a partner’s infidelity, threats to social status, or rivalry for a potential mate’s attention. Women rarely resort to physical violence, but their aggression often takes verbal or social forms—commonly manifesting as systematic devaluation of rivals through gossip, slander, or social manipulation. These observations suggest that, despite civilizational progress and cultural development, the fundamental goal of human existence remains ensuring personal survival and the transmission of genes to future generations. Aggression, in its myriad expressions, remains a pervasive phenomenon affecting most individuals. This raises the question: what specific factors—biological, psychological, or environmental—predispose individuals to the escalation of aggressive behaviors in contemporary society?

The neurobiological and physiological underpinnings of aggressive behavior: from serotonin to brain lesions

Aggressive behavior is not solely determined by environmental or economic factors—biological mechanisms also play a critical role. Research indicates that men exhibit impulsive reactions more frequently than women, a tendency potentially linked to lower serotonin levels, a neurotransmitter essential for regulating emotions and impulses. Individuals with aggressive tendencies, including criminals, often display disruptions in serotonin concentration, which further amplifies the risk of uncontrolled behavior. Alcohol consumption can exacerbate aggression by lowering serotonin levels, while adrenaline—another key neurotransmitter—is found in reduced quantities in individuals with high arousal thresholds (e.g., violent offenders), explaining their need for stronger stimuli. Damage to the frontal lobe, such as from trauma, may lead to impaired moral reasoning, sexual deviance, or heightened aggression. Notably, verbal stimuli—words—can either provoke or suppress aggression, a principle leveraged in crisis negotiations. Pharmacological interventions targeting neurotransmission have proven effective in mitigating aggressive behavior. Understanding the biological foundations of violence enables the development of more effective preventive strategies, though it also raises ethical dilemmas, such as the legal accountability of individuals with neurochemical imbalances.
Katarzyna Mazur

Katarzyna Mazur

View Profile

Scan this QR code to access this page quickly on your mobile device.

QR Code