Nonenaldehyde substance is the cause of the smell
The reason why odors become more noticeable with age is due to a substance called nonenal aldehyde. Nonenal aldehyde is produced when fatty acids in sebum oxidize, accumulating in pores and creating a musty smell. Nonenal aldehyde is not produced when young but begins to form from the 40s onward due to aging, which causes a decrease in beneficial skin bacteria, an increase in harmful bacteria, skin acidification, and changes in lipid components. Additionally, the ability to eliminate nonenal aldehyde diminishes with age. As people age, metabolism slows down, activity levels decrease, and nerve degeneration reduces sweat secretion, making it harder to expel nonenal aldehyde. Aging combined with alcohol and tobacco consumption also increases the secretion of nonenal aldehyde, resulting in a stronger odor. Drinking alcohol promotes the formation of nonenal aldehyde, while smoking inhibits its breakdown.
Thoroughly wash behind the ears and drink plenty of water.
To reduce odor, it is especially important to thoroughly wash behind the ears. The reason why there is a particularly strong foul smell behind the ears is due to the abundance of sebaceous glands in that area. Sebaceous glands are exocrine glands located in the dermis of the skin, situated next to hair follicles, and responsible for the synthesis and secretion of sebum. Sebaceous glands start on the scalp and extend downward along the body, passing behind the ears. These glands are most numerous on the scalp, forehead and T-zone (nose and forehead), and around the ears. Naturally, the skin behind the ears also has pores. Waste products from the sebaceous glands can accumulate in the pores, and if not washed thoroughly, they can cause a foul odor.
In addition, it is good to drink plenty of water. This helps the body to efficiently eliminate waste products. Walking in the sunlight is also beneficial. Ultraviolet rays have a sterilizing effect that helps remove odors. Additionally, moderate exercise increases sweat production, which helps expel waste and reduce odors. Eating plenty of vegetables and fruits is also important. The antioxidant compounds called 'phytochemicals' found in vegetables and fruits help prevent oxidation.
