The phenomenon often referred to as “old people smell” is more than just a stereotype; it has scientific backing, according to experts. This distinct scent, sometimes described as musty or greasy, is associated with aging and is not merely a social stigma. Dr. Dan Wesson, a professor at the University of Florida College of Medicine, explains that this odor is a result of changes in the skin as we age. The skin, being the largest organ, undergoes significant transformations over time, affecting body odor.

Throughout most of our lives, body odor is primarily caused by sweat, bacteria, and dead skin cells. However, as we age, the composition of our skin and oil production changes, leading to more complex odors. One key factor is the compound 2-nonenal, which arises from lipid oxidation—a process where fats in cells break down due to bodily imbalances. This compound is unique to aging skin and emits a greasy, cardboard-like smell that regular hygiene practices may not effectively remove.

Dr. Wesson suggests a holistic approach to managing this odor by incorporating antioxidant-rich foods such as fruits and vegetables into one’s diet, maintaining hydration, and using skincare products with antioxidants. Additionally, certain medications for conditions like high cholesterol or depression can influence body metabolism and sweating patterns, potentially affecting odor.

Hormonal changes also play a role in how people smell. For instance, post-menopausal women may experience shifts in skin and scent due to decreased estrogen levels. Hormone replacement therapy can mitigate some of these changes but should be considered carefully with medical advice due to potential risks.

Experts caution that not all changes in body odor are normal. A sudden alteration could signal an underlying health issue such as cancer or dementia. If loved ones notice a significant change in your scent, consulting a doctor is advisable.

Some individuals may worry about their smell even when others do not notice it. This concern might stem from parosmia—a distorted sense of smell—or olfactory hallucinations where unpleasant odors are imagined. Understanding whether an odor is real or perceived is crucial for addressing concerns effectively.

By comprehending the biological factors behind age-related odors and adopting proactive health and skincare strategies, individuals can manage this condition effectively.