Scientists studied over 2,000 men living in the U.S. for their research.
Older people with a poor sense of smell could have almost double the risk of dying in the coming decade compared with those who are better at picking up odors, a study has suggested.
By the end of the study, 1,211 of the total had died. The association between poor smell and the risk of dying was still apparent after the team accounted for factors which could skew the results, such as sex, race, and lifestyle. This link was most apparent among those with good health at the start of the study, compared to those with poor health.
Studies in the future should look at a poor sense of smell as a general marker of aging to gain a deeper understanding of its health implications, they said. Kevin McConway, emeritus Professor of Applied Statistics at The Open University, who was also not involved in the research, commented that by researching individuals up to 13 years and taking a closer look at why smell might be linked to mortality, the study is a “real advance.”
Howard agreed with the authors that the "loss of smell may be a marker of generalized aging and should be taken seriously by older people and their doctors."
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