Aging brings wisdom, experience, and, unfortunately, some less pleasant changes—like a distinct body odor often referred to as “old person smell.” While the term might sound unflattering, this phenomenon is backed by science. The good news? There are ways to manage it.
The odor is caused by a compound called 2-nonenal, which increases as we age. Hormonal shifts lead to higher levels of fatty acids in the skin, and as antioxidant levels drop, these acids oxidize, producing nonenal. This compound can cling to the skin and clothing, creating a musty scent that’s hard to eliminate.
It’s important to note that this smell isn’t necessarily a result of poor hygiene. It’s a natural part of aging. However, factors like dehydration, dirty laundry, and confined spaces can make the odor more noticeable. Illnesses and medications may also play a role.
Interestingly, humans might have an evolutionary ability to detect this scent. Some studies suggest it could be linked to our ancestors’ ability to assess age and health through smell, much like animals do.
In Japan, where the odor is known as kareishu, companies have developed products like persimmon-based body washes and deodorants to help neutralize it. But you don’t need specialized products to make a difference. Regular exercise, a healthy diet, staying hydrated, and washing clothes frequently can all help reduce the intensity of the smell.
Aging is a natural process, and while some changes are inevitable, they don’t define a person’s worth. By understanding the science behind “old person smell,” we can approach it with compassion and take practical steps to address it.
