Have you ever heard someone say, with an odd sense of certainty, that they “felt” something was about to happen?
That expression may be more than just a figure of speech. Throughout history, human beings have wondered about the mysteries of the body and the mind.
What if, in certain situations, our bodies pick up on signals that remain invisible to others? An intriguing possibility links our sense of smell… and intuition.
The human body: a system still full of mysteries
Our bodies function like incredibly precise machines. Breathing, heartbeats, emotions, reactions—everything seems orchestrated without us having to think about it. And yet, despite advances in research, some phenomena remain difficult to explain.
Among them is that feeling some people describe when a major change is approaching. Doctors have sometimes observed that seriously ill patients express a sense of calm or a need to say goodbye to loved ones. It’s unsettling—but deeply human.
This isn’t about predicting the future. Rather, it may reflect a heightened sensitivity to subtle signals the body detects even before the mind can put them into words.
The sense of smell: more powerful than we imagine
Our sense of smell is directly connected to areas of the brain associated with emotion and memory. That’s why a single scent can instantly take us back to a childhood moment—like the smell of a cake fresh out of the oven.
Researchers at the University of Kent explored an intriguing hypothesis: could our brains unconsciously detect certain molecules linked to biological changes in the body?
Psychologist Arnaud Wisman and his team conducted experiments involving a substance called putrescine, which is naturally produced during certain organic processes. Participants exposed to this odor—without knowing what it was—showed specific emotional reactions, often linked to mild discomfort or a heightened state of alertness.
An important point: the volunteers did not consciously associate the smell with any particular danger. It was the unconscious mind that seemed to respond first.
Intuition or simply biological sensitivity?
Does this mean the body “knows” everything in advance? Not exactly. Researchers speak instead of biological sensitivity. Our bodies are constantly picking up tiny pieces of information: hormonal fluctuations, physiological changes, barely perceptible odors.
The brain processes this data at remarkable speed. What we call “intuition” may sometimes be the result of these micro-signals being integrated without our awareness.
It’s similar to the feeling that a storm is coming before you even see the clouds: the air changes, atmospheric pressure shifts—and your body registers it.
The powerful link between emotions and scents
Many studies show that certain smells influence our emotions. A pleasant fragrance can soothe us, while an unfamiliar odor can trigger a vague sense of unease.
This mechanism can be explained by an ancient protective system: our brains are wired to respond quickly to environmental signals that might indicate danger.
In moments of great vulnerability, this sensitivity may be amplified. Some people may then experience these subtle shifts more intensely, which could explain their need to draw closer to loved ones. It’s a fascinating illustration of the connection between smell and emotion—and the remarkable power of human intuition.
An invitation to be more present
Beyond the scientific hypotheses, this topic ultimately reminds us of something essential: the importance of human connection.
When someone close to us feels the need to see us, to talk, or to reconnect, taking the time to respond to that call is precious—not out of fear, but out of care and affection.
Our bodies and our emotions are deeply intertwined. Sometimes, they are simply inviting us to slow down, to listen, and to share more fully.
And what if the real lesson isn’t about predicting the inevitable, but about learning to be fully present for one another?
