The phrase “old people smell” gets tossed around a lot, usually with a cringe or a chuckle—but the reality is far less judgmental than the term suggests. This distinct, sometimes musty scent isn’t about poor hygiene. It actually has a biological explanation.

As we age, our skin naturally produces more of a compound called nonenal. Nonenal has a grassy, oily odour that can linger, especially when it settles into clothing, furniture, and other fabrics. In homes, the smell can become more noticeable when ventilation is poor, cleaning is less frequent, or odour-trapping materials like carpets and curtains are present.

Not everyone experiences this smell the same way. Sensitivity to odours varies widely, and cultural background, personal memories, and even health conditions can influence how noticeable or bothersome it seems. The scent itself can also differ from person to person depending on diet, hygiene habits, and living environment.

While you can’t “prevent” aging (nice try), you can manage associated odours. Regular bathing, breathable fabrics, fragrance-free soaps, a clean living space, good airflow, and a healthy diet rich in antioxidants can all help reduce musty smells—keeping homes fresher and everyone a little more comfortable.

By Diane Alavie, BSc.Phm