Is 'old person smell' a thing?

We've received questions from listeners worried that other people can smell their age.

So is "old person smell" a thing? And do you need expensive soap to combat it?

Norman and Tegan discuss some of the science underpinning this supposed phenomenon, and where marketing tricks play a part.

References:

• 2-Nonenal Newly Found in Human Body Odor Tends to Increase with Aging
• Measurement of 2-nonenal and diacetyl emanating from human skin surface employing passive flux sampler—GCMS system
• Analyses of volatile organic compounds from human skin
• The effect of polyphenol-containing soap on reducing body odor in middle-aged and elderly men
• The Smell of Age: Perception and Discrimination of Body Odors of Different Ages
• Diet quality and the attractiveness of male body odor

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