
The research positions human olfactory responses alongside those of other animals, suggesting that despite the complexity of modern cognition, some of the most fundamental behavioral triggers still operate at a pre-conscious, biological level — activated by a molecule most people have never heard of.
Taken together, the work of Wisman and Shira points to an olfactory reflex that operates entirely beneath conscious thought: the human nose detects the chemical signature of death, the body moves away, and the mind never receives an explanation for why.
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