By Editorial Staff
Some memories fade with time, while others linger, waiting for the right moment to resurface. Sometimes, they return not as mere recollections but as haunting echoes that demand to be understood. In the vast labyrinth of human memory, there are moments when the past reemerges in ways we cannot explain.
Scientists and psychologists have long studied the mechanics of memory, yet there remain cases that defy conventional understanding. One such case is that of a Rwandan driver who, for years, encountered a strange and persistent experience—one that ultimately unraveled the mystery of his own survival. This article is divided into these sections:
- A haunting sensation
- The science of hidden memories
- When the past calls: what does it mean?
- Conclusion— the mind remembers what the heart forgets
A haunting sensation
Imagine driving on the same road for years, passing by familiar places, yet in one particular location, something feels off. This was the experience of a Rwandan driver who, every time he reached a specific spot, smelled blood. Not just once or twice, but consistently. Perplexed by this sensation, he would ask those around him “Don’t you really smell blood?” Each time, the response was the same: “No.” There was no visible sign of blood, no accident, no reason for such a smell to linger in the air. And yet, for him, it was as real as the road beneath his tires.
This continued until an astonishing truth emerged. As a survivor of the 1994 Genocide against the Tutsi in Rwanda and then too young to remember, he had been rescued from a massacre that occurred exactly in that location. He had survived, but his conscious mind had buried the traumatic memory. However, his body—his senses—had not forgotten.
This story is both eerie and enlightening, offering a glimpse into profound ways in which trauma imprints itself on the human psyche, even when the conscious mind holds no recollection of the event.
The science of hidden memories
The concept of implicit memory—a type of memory that influences behavior without conscious awareness—offers a possible explanation for such cases. Unlike explicit memory which allows us to recall facts and events, implicit memory is deeply embedded in the nervous system. It manifests in automatic responses, habits, and, as seen in the driver’s case, subconscious sensory reactions.
Studies have shown that trauma, especially experienced at a young age, can be stored in implicit memory. The brain, in an attempt to protect itself, suppresses explicit recall of the traumatic event, yet the body retains the experience. This phenomenon is often observed in individuals, with post-traumatic stress disorder (PTSD), who react to certain stimuli—sounds, smells, places—without understanding why.
Dr. Bessel van der Kolk, a renowned trauma expert and author of the book “The Body Keeps the Score”, emphasizes that trauma is not just a memory but a visceral experience. Survivors may not consciously remember an event, but their bodies respond to triggers as if reliving the moment.
Therapy in a Nutshell constitutes a mental health education platform created by licensed therapist Emma McAdam. It provides accessible resources on mental health, emotional well-being, and therapy techniques through YouTube videos, online courses, and blog posts. The content focuses on practical strategies to manage anxiety, depression, trauma, and stress, making therapy concepts easy to understand and apply in daily life.
In her on 22 September 2022 article entitled “Why Are Traumatic Memories So Different From Other Memories? PTSD Memory” published in Therapy in a Nutshell, she says “In the book The Body Keeps the Score, Dr. Bessel van der Kolk shares a study of veterans from World War II. Researchers interviewed these veterans every couple of years for 45 years, and they asked them about their experiences with the war.
They found that for the veterans who did not develop PTSD, their accounts and their memories, they changed over time. The events had lost the sharp edges of fear and intensity of painful emotions. But for the men who did develop PTSD, their experience was different.”
McAdam explains “They may not remember all of the details, but the things that they did remember remained sharp and consistent for over 45 years after the war ended. Their traumatic memories were much more vivid than regular memories, and their accounts did not change over the decades.
When traumatic memories are retrieved, the physical stress response actually serves to strengthen them, to reinforce the memory in the circuits of the brain. The PTSD response makes these memories stronger and stronger over time.”
Trauma doesn’t just alter the way we remember—it changes how we relive those memories. For many PTSD survivors, recalling a traumatic event is not just a mental experience but a sensory one, as if they were transported back in time, feeling, smelling, and experiencing the moment all over again.
McAdam clarifies “Let’s talk about the second way that trauma changes memories. So these veterans who were getting interviewed for 45 years described these memories as feeling like yesterday, and they said that these memories trigger the physical sensations of the actual event. And so that’s the second way that PTSD memories differ: traumatic memories come with very vivid sensations.
People report actually smelling during a memory or actually feeling the sensation of a memory. These are sometimes called flashbacks. Now, studies show that for non-traumatized memories, like for example, the birth of a child, people don’t have such vivid memories. They don’t remember every little detail in full clarity, like how someone’s face looked or the smell of a room. But with traumatic memories there’s the physical re-experiencing.”
One example, according to McAdam, provided by Dr. van der Kolk is that of a woman who was assaulted by a drunk person. “And later if she went to parties, if she caught a whiff [smell] of alcohol, the flashbacks would return so powerfully that she felt like she was being assaulted again. So she basically stopped going anywhere.”
The fact that traumatic memories remain sharp and unchanged over time— unlike normal memories which fade or evolve— highlights how the body’s stress response reinforces traumatic memories, making them more vivid and persistent. The Rwandan driver does not consciously remember the massacre he survived. But his body retains the trauma, manifesting as an inexplicable, recurring sensory experience—the smell of blood.
McAdam says that traumatic memories distort the passage of time. “The memory doesn’t feel like something in the past; it feels like something happening in the present moment, and the survivor re-enters the fight/flight/freeze mode.”
To elucidate it she adds “Dr. van der Kolk shared an experiment he ran where they were able to scan the brains of participants who were reminded of a traumatic event. Blood pressure and heart rate went up, and the brain essentially entered a super emotional state. The regions that process fear got super activated, and the part of the brain that processes rationally, that says ‘Oh, no, you’re safe now. That was in the past,’ that part of the brain actually decreased activity and shut down.”
“So this is one of the reasons why it’s difficult to calm down and rationally think through trauma memories. When our system gets overwhelmed, the part of our brain that makes words, that tracks time and integrates sensations, it shuts down.”
When the past calls: what does it mean?
The story of the driver raises profound questions about human perception and ways in which the past lingers within us. Is it merely neurological, or is there something more—perhaps even a spiritual dimension to memory? A sure point is that a human being is extraordinarily complex to the extent that they are far beyond the limits of thought and imagination.
The human mind is an unfathomable expanse, holding memories not only in the realm of conscious recollection but also in the depths of implicit memory—echoes of experiences long buried, yet alive in our senses and emotions. The case of the Rwandan driver, like countless others, is a striking testament to the intricate ways in which trauma weaves itself into the very fabric of our being.
It is this phenomenon—the body’s ability to remember what the conscious mind has forgotten—that underscores the perplexing vastness of human existence. We are not merely rational beings governed by logic and awareness; we are reservoirs of unspoken histories, carrying within us traces of events we do not actively recall but nonetheless shape our perceptions, fears, and responses. This realization not only challenges our understanding of memory but also hints at the profound interconnectedness of mind, body, and experience—an interwoven tapestry of past and present, seen and unseen.
Such complexity extends far beyond our current scientific grasp. While psychology and neuroscience offer compelling explanations, the precise mechanisms through which the mind encodes, suppresses, and later unearths memories remain a subject of ongoing inquiry.
Ways in which trauma defies time—manifesting itself through sensations, behaviors, and inexplicable emotions—serve as a humbling reminder that human cognition is not confined to conscious thought. It is, instead, an intricate labyrinth of recollections that stretch beyond conventional reasoning, reinforcing that the human experience is more profound, enigmatic, and boundless than we can fully comprehend.
Meanwhile, it is advisable to seek treatment or conduct further examination, if you experience sensory perceptions such as smelling something that isn’t there (phantom odors) or sensing other things that don’t have an apparent source. These types of experiences can sometimes be linked to psychological or medical conditions that may require attention.
In the case of trauma, sensory experiences like the smell of blood can sometimes be tied to repressed memories resurfacing through the body’s implicit memory response. It is important to consult a healthcare professional, such as a neurologist, psychologist, or therapist, who can help assess the situation, rule out medical causes, and provide appropriate treatment or therapy if needed. Addressing such experiences early can prevent potential complications and help individuals gain clarity about their condition.
While the driver’s experience was unsettling, it ultimately led him to a deeper understanding of his own history. Once he knew the truth, he began to process the past rather than being haunted by an inexplicable sensation.
This highlights the importance of addressing trauma rather than burying it. Many people unknowingly carry emotional burdens from their pasts—whether from childhood experiences, ancestral trauma, or personal loss. Acknowledging these memories, even when they are deeply buried, can be the first step toward healing.
Conclusion— the mind remembers what the heart forgets
The human mind is a vast and mysterious entity, capable of both shielding us from pain and subtly reminding us of what we need to confront. The driver’s story serves as a testament to the resilience of memory and the deep connection between our past and present. It is a reminder that the past, no matter how deeply hidden, finds its way to the surface—not to haunt us, but to help us understand ourselves more fully.
So the next time you experience such a feeling, an inexplicable reaction to a place, or a sensation you can’t quite explain, consider this: perhaps your memory is speaking to you in a language beyond words, urging you to listen.