This is why old people smell bad

While we love and respect older people, we know that with age, some things are not just a matter of wisdom. Physical changes in older people are not limited to their appearance.

There’s a distinctive odor that accompanies aging, often referred to as “old man’s odor.” While it may sound unpleasant, science has proven its existence. You’ve probably smelled it before: a slightly musty scent, with oily, slightly heavy notes that seem to come directly from the pores of the skin.

This odor can be present in relatives’ homes, nursing homes, or even in the supermarket checkout line. However, be aware that it has little to do with hygiene. According to scientists, it is caused by a compound called 2-nonenal. As we age, hormones change, leading to increased production of fatty acids in the skin.
As we age, our antioxidant levels decrease, leading to oxidation of these fatty acids, leading to an increase in the amount of 2-nonenal. This compound can persist on the skin even after washing and is mainly released in the chest and back.
Illnesses and medications can also contribute to this odor. A 2001 study published in the Journal of Investigative Dermatology found that the clothing of older adults had higher concentrations of 2-nonenal.