The Hidden Human Reaction to Death’s Scent
Death is one of life’s few universal experiences, yet it remains shrouded in mystery. For many, fear of the unknown drives their anxiety about dying. However, science is slowly uncovering clues—some of which tap into human instincts we barely notice.
One fascinating discovery centers on a compound called putrescine, a toxic, foul-smelling chemical released as the body breaks down after death. According to research, humans subconsciously recognize this scent as a sign of danger or decay.
Researchers Arnaud Wisman of the University of Kent and Ilan Shira from Arkansas Tech University found that humans respond to this odor similarly to animals—by instinctively moving away. This reaction is thought to be an evolved survival mechanism.