While we love and respect our elders, we recognize that aging brings physical changes beyond wisdom. One such change is the distinct body odor, often referred to as “old people smell.” This musty scent with undertones of oil or grease is caused by a compound called 2-nonenal, produced when hormonal changes lead to more fatty acids in the skin. These fatty acids oxidize, releasing nonenal, which can remain even after washing.

Several factors, like dirty laundry, confined spaces, dehydration, and medications, can intensify the odor. Studies suggest that the ability to detect this scent may have a subconscious link to our ancestors, helping them assess age and health.

In Japan, products like perfumes and body washes containing persimmon are designed to neutralize nonenal. To manage the odor, regular exercise can balance hormones, and washing clothes more frequently prevents nonenal buildup. A healthy diet with antioxidants and hydration helps maintain skin health. Opening windows for fresh air also helps. Aging is inevitable, but compassion for our elders remains timeless.