As they grow older, the elderly often emit a characteristic smell from their bodies, commonly known as "old people's smell". This smell is not because the elderly do not pay attention to personal hygiene, but sometimes, over-cleaning certain body parts is not good for health.
So, what is the reason for the "old man's smell", and what parts do we not need to clean too much?
1. Scientific explanation of the taste of the elderly
The term "old man" may sound a little uncomfortable, but it does exist, and it is an age-related physiological phenomenon. Scientific studies have shown that this characteristic odor is related to a compound called 2-nonenal.
According to a study in the Journal of Dermatology, as people age, their skin produces more omega-7 unsaturated fatty acids. These fatty acids undergo oxidation to produce 2-nonenal, a substance that releases a characteristic and often unliked odor.
And, don't think that the more you wash it off, 2-nonenal is insoluble in water, so regular bathing has a limited effect on its removal.
This explains why some elderly people still have "old man smell" even if they bathe frequently. What's more, after the age of 40, the aging process of the skin accelerates, and this smell is even more difficult to avoid.
2. Physical changes and the decline of olfactory function
In addition to the compounds produced by the skin, the smell is often not perceived by the elderly themselves, and the reason is that the sense of smell gradually weakens as we age.
This is not just a problem for the elderly, in fact, when a certain age is reached, everyone's sense of smell will decline. In this way, even if there is a so-called "old man's smell" on the body, it is not easy for the elderly themselves to notice it.
At the same time, it is worth noting that the increase in body odor is not solely related to age. Eating habits, lifestyle, and even certain chronic diseases can affect a person's body odor.
For example, people with chronic kidney disease and kidney failure may have a body odor that resembles salted fish, while diabetics may have a smell similar to that of rotten apples. These are due to changes in the body's metabolites, which in turn affect body odor.
Therefore, when we talk about "old people's taste", we cannot simply blame it on personal hygiene habits. It is a complex physiological phenomenon that involves far more factors than meets the eye.
For the elderly, it is most important to understand these changes and take a correct view of their physical condition.
3. Four parts that should not be over-cleaned
In daily life, many people believe that "cleanliness equals health", and this belief has led some people to pursue excessive personal hygiene.
However, scientific studies have shown that some body parts do not need to be washed as often, and excessive cleaning can have negative health effects.
The first thing to do is the nostrils. A study published in the European Journal of Respiratory Studies showed that the microbial community in the nasal cavity plays an important role in maintaining respiratory health.
Frequent cleaning of the nostrils with a cotton swab may disrupt the microbiome balance in the nasal cavity, reduce the number of beneficial bacteria, and make people more susceptible to germs.
The ears are also one of the areas that should not be over-cleaned. Earwax is a natural protective substance that prevents dust and microorganisms from entering the ear canal, lubricating and cleaning the ear canal.
Nature's design is always exquisite, the ear has a self-cleaning mechanism, and the earwax will slowly move to the outside of the ear canal with actions such as chewing, and will naturally fall off.
Let's talk about the navel, this small depression that many people overlook. Scientists have found more than 70 different bacteria in the navel, but most of these bacteria are not harmful to the human body, and some can even prevent pathogens from attacking. Frequent washing of the belly button, using soap and water may disrupt this balance, leading to dry or infected skin.
The skin, the largest organ in the human body, does not need to be over-cleaned. The skin's surface is covered by a natural layer of oils and microorganisms that act as a protective barrier.
Using too much body wash while bathing, especially those that contain powerful oil-removing ingredients, can break down this barrier, leading to dryness, irritation, and irritation of the skin.
Fourth, the three daily activities of the health of the elderly that cannot be ignored
It is especially important for seniors to maintain a healthy lifestyle. Here are three daily activities that are key to maintaining the health of older adults that are often overlooked.
Oral hygiene is the first important daily activity. Research in the European Journal of Clinical Research states that good oral hygiene practices can reduce oral diseases such as periodontal disease and tooth decay, and even reduce the risk of heart disease and stroke. Older people should see their dentists regularly and stick to brushing and flossing daily.
Moderate exercise is another key activity. Research data published in The Lancet Health and Longevity shows that moderate physical activity can improve cardiovascular health, enhance muscle strength, improve cognitive function, and even help slow down the aging process in older adults. Moderate exercise is not just about strenuous physical activity, gentle exercises such as walking, tai chi, and yoga are just as effective.
Finally, cognitive activity is also essential for preventing and delaying Alzheimer's disease. Studies in the journal Neurology found that older adults who regularly engage in cognitive activities have a slower rate of cognitive decline than those who do not engage in such activities regularly. Cognitive activities include reading, writing, playing board games, learning new skills, etc.
5. Emotions and social interaction in old age
Emotional management in old age is not only related to quality of life, but also has a direct impact on physical health. Research in the Journal of Psychogerontology has shown that emotionally stable older adults are better able to manage stress and anxiety more effectively than those with high mood swings, thereby reducing the risk of cardiovascular disease.
Strategies for managing emotions include cultivating an optimistic attitude towards life, engaging in meditation and breathing exercises, and participating in community activities.
Social activities also play an important role in the lives of older people. Social participation can enhance the sense of belonging and self-worth of older adults and reduce loneliness.
Research in the journal Geriatrics & Gerontology shows that older adults who regularly communicate with family and friends have a slower rate of cognitive decline, and socially active older adults may even have a longer life expectancy.
6. Diet adjustment and sleep quality
Dietary adjustment is an important part of the health of the elderly. As we age, our metabolism slows down and our body's needs for nutrients change.
Research in the Journal of Geriatric Nutrition suggests that older adults should reduce salt and sugar intake and increase dietary fiber and high-quality protein intake, while ensuring adequate water intake, which can help maintain digestive health and prevent chronic diseases.
Sleep quality is also critical to the health of older adults. Sleep disturbances are common in older people and may be related to physiological changes, chronic illness, or medication side effects.
Research published in the journal Sleep Medicine suggests that a good night's sleep can help maintain cognitive function, while sleep deprivation may accelerate the aging process in the brain.
Therefore, the elderly should pay attention to maintaining good sleep hygiene habits, such as maintaining a regular schedule and creating a quiet and comfortable sleeping environment.
summary
Old age is the golden period of life, and through a scientific lifestyle and active social participation, every elderly person can enjoy a fulfilling and happy old age.