The phenomenon known as 'old people smell' is a genuine olfactory experience resulting from the chemical compound 2-nonenal, which accumulates as skin lipid oxidation occurs with age. Leslie Kenny, a longevity expert, suggests that regular consumption of mushrooms can help mitigate this scent by combating 2-nonenal's formation. The body’s reduced antioxidant production and slower skin cell turnover contribute to this smell, prevalent among individuals over 40, regardless of hygiene. Eating mushrooms three to four times a week may provide a dietary solution to refresh aging adults' scent.
As people age, their bodies produce fewer antioxidants that normally protect skin lipids from degrading, allowing 2-nonenal to accumulate and linger.
Kenny concluded that this 'old person smell' develops later in life due to oxidative breakdown of sebum and slower skin cell turnover.
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