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Articles related to focusing on healthy aging, prevention, mobility, cognition, nutrition, independence, and caregiving support.

4 min

At what age do older people start to smell? Understanding nonenal

Research from the Monell Chemical Senses Center indicates that the distinctive 'aging odor' is identifiable by others in individuals aged 75 and older, though the responsible molecule, 2-nonenal, can appear as early as age 40. Exploring at what age do older people start to smell involves understanding these natural, age-related changes rather than issues with hygiene.

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4 min

Why do men smell as they get older? The science of 'nonenal'

According to a 2012 study published in the journal *PLoS ONE*, humans can indeed identify the body odor of different age groups, including a distinct signature associated with older adults. This odor, often linked to the common question, "Why do men smell as they get older?," is not a sign of poor hygiene but a natural biological byproduct of the aging process.

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5 min

Why Does My Husband Suddenly Smell Like an Old Man? The Surprising Reasons for Age-Related Odor

According to a study published in the *Journal of Investigative Dermatology*, a specific chemical compound called 2-nonenal is responsible for the 'old person smell' and tends to increase in individuals over the age of 40. This natural biological process might be the reason why your husband suddenly smells like an old man, but there are also other potential causes to consider, from lifestyle factors to underlying health conditions.

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3 min

What does it mean to smell like an old person? The science of nonenal explained

Research published in the *Journal of Investigative Dermatology* identified 2-nonenal as a chemical compound unique to older adults that contributes to a distinct body odor, which helps explain what does it mean to smell like an old person. This musty, greasy, or grassy scent is not a result of poor hygiene but rather a natural biological process involving the oxidation of fatty acids on the skin. Understanding this scientific phenomenon can demystify the aging process and offer targeted solutions for managing the odor.

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