Understanding Our Innate Survival Instincts: Which Two Fears Are You Born With?
It's a question that sparks curiosity about our very nature: are there certain fears we're all hardwired with from birth? The answer, according to a significant body of research in psychology and evolutionary biology, is a resounding yes. While we develop a vast array of anxieties and phobias throughout our lives based on experiences, trauma, and learned behaviors, there appear to be two core fears that are deeply embedded in our genetic makeup, serving as crucial survival mechanisms for our ancestors. These aren't specific phobias like a fear of spiders or public speaking, but rather more fundamental, instinctual reactions.
The Two Primordial Fears
1. Fear of Falling
One of the most universally recognized innate fears is the fear of falling. Think about it: even a very young infant, before they've had a chance to experience a painful tumble, will react with distress when they feel like they are about to fall. This is evident in the "Moro reflex," also known as the startle reflex, which is present in newborns. When a baby is suddenly dropped or experiences a sensation of falling, their arms and legs will extend outwards, followed by their arms coming back together, as if trying to grasp for support. This reflex is believed to be an evolutionary holdover, a way for our primate ancestors to cling to their mothers when in unstable situations.
This fear is deeply ingrained because, for our early human and pre-human ancestors, a significant fall could easily mean serious injury or death. In environments where cliffs, uneven terrain, and precarious perches were common, an instinctive aversion to heights and the sensation of uncontrolled descent was a vital tool for survival. This doesn't mean everyone is afraid of heights as adults, but the underlying mechanism of being startled by a loss of stable ground is present from birth.
2. Fear of Loud Noises
The second innate fear that scientists widely agree upon is the fear of sudden, loud noises. Just like the fear of falling, infants will exhibit a strong startle response to loud sounds. Their bodies will tense, they might cry, and their eyes will widen. This reaction is not learned; it's an immediate, unconditioned response. The purpose of this innate fear is clear from a survival perspective.
Loud noises in the natural environment could signal danger. A sudden, booming sound might indicate a predator approaching, a rockslide, or some other immediate threat. An individual who instinctively recoiled from such noises would be more likely to survive and reproduce. This primal fear helps us to quickly assess and react to potential dangers in our surroundings, even before we can consciously understand what the noise signifies.
Why Are These Fears Innate?
The explanation for these innate fears lies in the principles of evolutionary psychology. Our brains and behaviors have been shaped over millions of years by natural selection. Traits that increased the survival and reproductive success of our ancestors were more likely to be passed down to future generations.
In essence, these innate fears are not a flaw, but a sophisticated biological inheritance designed to protect us from fundamental dangers that plagued our ancestors.
These fears are considered preparedness in evolutionary terms. This means that we are biologically "prepared" to fear certain things that were consistently dangerous throughout human evolutionary history. While other fears can be learned or conditioned, these two are present from birth, acting as a sort of built-in alarm system.
Distinguishing Innate Fears from Acquired Phobias
It's important to differentiate these innate fears from phobias, which are excessive, irrational fears of specific objects or situations. While a fear of heights might manifest as acrophobia in some individuals, the underlying innate fear is the reaction to the sensation of falling. Similarly, while someone might develop a phobia of fireworks, the innate fear is the startle response to any sudden, loud, unexpected sound.
The difference is crucial: innate fears are general survival responses, while phobias are often more specific and can be debilitating. Even if someone doesn't develop a full-blown phobia, the underlying instinctual aversion to falling and loud noises remains a part of our biological heritage.
FAQ Section
How do we know these fears are innate?
Scientists observe these fears in infants, even before they have had significant experiences that could lead to learned fears. For example, the Moro reflex in newborns to sensations of falling and the immediate startle response to loud noises are strong indicators of innate programming.
Why aren't we born with a fear of snakes or spiders?
While many people develop a fear of snakes or spiders, these are often considered "prepared" fears rather than strictly innate. Humans may have been evolutionarily predisposed to be wary of such creatures due to their potential danger, making it easier to learn to fear them, but the fear itself isn't universally present from birth in the same way as the fear of falling or loud noises.
Can these innate fears be overcome?
Yes, while the instinctual response may be present, individuals can learn to manage and overcome the debilitating aspects of these fears. For example, through therapy, exposure, and cognitive behavioral techniques, people can learn to control their reactions to heights or loud noises, especially when they escalate into phobic levels.

