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Why Do Old People Smell Different?
HuffPost • • health
Key Points:
- The distinctive "old person smell" is caused by increased production of 2-nonenal, an organic aldehyde that accumulates in the skin as people age, typically starting after age 40 and becoming more noticeable in the 50s and beyond.
- This scent results from age-related changes in the skin, including decreased antioxidant defenses, altered sebum composition, and increased oxidative damage from UV exposure and environmental stress.
- 2-nonenal is a fatty acid that adheres strongly to skin and fabrics, making it difficult to wash off completely; antioxidant-based cleansers and products containing tannins may help reduce its persistence, but no definitive cure exists.
- The perception of this odor varies widely among individuals, and olfactory adaptation often causes people to become unaware of their own scent; it is a natural, normal part of aging and not indicative of poor hygiene.
- Experts encourage acceptance of this biological change as part of aging, emphasizing health and well-being over cosmetic concerns, and suggest society could learn to appreciate the smell of aging rather than stigmatize it.
