In a peculiar revelation, scientists propose that your sense of smell might hold clues to predicting your time of death. A 2014 study, focusing on olfactory dysfunction as a harbinger of mortality, asserted that the loss of smell is a more potent predictor of impending death than heart failure, cancer, or lung disease.

Dr. Jayant Pinto, the lead author, likens the loss of smell to a canary in the coal mine—an early warning indicating underlying health issues. The study, involving 3,005 older U.S. adults, assessed their olfactory abilities by having them identify five scents: peppermint, fish, orange, rose, and leather.