Disease in the body, nose prophet? Reminder: 4 'places' have peculiar smells, be alert to the coming of diseases

"Dad, why does Grandpa's room smell bad? It smells like mold, so bad."

Mr. Li listened to his youngest son's words, and quickly covered his mouth and said, "The little child talks nonsense, what's the taste!"

Mr. Li, who usually lives in the urban area, took advantage of the holiday to have time, so he took his wife and son back to his hometown, because basically he only returns to his hometown during the New Year and festivals. There are usually two elderly people living in the hometown, so it is inevitable that there will be a little bit in the house. special taste.

As soon as Mr. Li's son entered the house, he covered his nose and shouted that the house had a very special and unpleasant smell, and asked his father to "deodorize" quickly.

The grandfather next to him was a little puzzled, saying "what's the smell", but looking at his grandson's disgusting expression, he finally closed his door and took out the air freshener to spray a few times.

I believe that many people may have smelled a similar "old man's smell". Generally, near the elderly or in the room where the elderly lived, they can clearly smell a special smell, but often the elderly cannot smell it. Is there any "principle" in this? Does the so-called "old man smell" really exist?

1. Where does the "old man smell" come from? 3 points or the main reason

First of all, we need to be clear that the elderly do have a special smell.

In a 2012 study published in the international academic journal PLOS ONE, researchers asked raters to identify participants' ages by smell. In the end, it was found that the evaluators had difficulty distinguishing smells between young and middle-aged people, but could easily tell which smells came from older people .

There are also some conclusions about the source of this smell, which are mainly affected by three reasons:

• metabolism

The source of the old-fashioned smell is related to the changes in metabolism. When the age increases, the activity decreases, the metabolism slows down, and the 2-nonenal secreted on the skin surface gradually accumulates . And this substance will have a special smell. Once it is not cleaned up in time, it will accumulate more and more, and it will easily produce an odor.

• The lifestyle of the elderly themselves

The composition of human body odor is very complex. In addition to the differences in sweat gland secretions of different people, it is also affected by food intake and hygiene habits.

Some elderly people have decreased physical strength and decreased willingness to clean. These lifestyles also lead to the formation of body odor.

• disease impact

As people get older, diseases follow, especially some chronic diseases.

For example, the metabolic process of diabetic patients can produce ketone bodies, which smell like rotten apples. Patients with chronic kidney disease and renal failure will have nitrogenous substances in their bodies, which will smell fishy.

"Old man smell" is so special, why can't the elderly smell it by themselves?

For the sense of smell, there is an evaluation index called "odor threshold", which is the lowest concentration of smell that can be detected by the human body. The lower the odor threshold, the more sensitive the person's nose is.

The study found that the smell threshold of the elderly is generally 2-25 times higher than that of the young , that is to say, the sense of smell of the elderly is getting slower and slower.

What's more, the sense of smell is adaptive, just like people who can't stand the smell of durian, once immersed in it, they will only smell its aroma.

2. 4 "places" where odors or signs of disease

Smell can also identify disease? According to a report published by the BBC, a nurse from Edinburgh, Scotland, Joy Miner, can easily smell Parkinson's syndrome through her sense of smell.

To see if Parkinson's could really be judged by smell, the researchers sampled 64 subjects and combined specific molecules. It was found that: Parkinson's patients do have a special taste, and through smell, the accuracy of judgment is as high as 90% .

There are many physiological factors that may affect body odor, such as glandular secretions, such as secretions from women's private parts, body excretions, such as sweat, fart, etc., but some odors may be early warnings of diseases:

1. Urine

Although normal urine has a smell, it is not strong, and if there is a sour smell in the urine, it may indicate pesticide poisoning; if there is rotten apple, it is more common in severe complications of diabetes, diabetic ketoacidosis; there is rat smell. Smell is more common in patients with phenylketonuria.

2. Mouth

The mouth releases an unpleasant odor, most likely related to internal organ disease.

If there is a putrid smell, it is related to inflammations such as sinusitis and flat pick; the sour smell may be related to gastric pyloric stenosis or obstruction; the smell of rotten apple is more common in diabetic patients; the smell of urine is related to chronic renal failure The rotten smell may be related to diseases such as lung infections.

3. Stool

The stool itself also smells bad, but it's usually not heavy and dissipates in a short time.

However, if the stool emits other odors, such as fishy odor, it may indicate enteritis; sour smell may be related to abnormal carbohydrate fermentation diseases; foul smell may indicate enteritis, chronic pancreatitis, pancreatic cancer, etc.

4. Fart

As the saying goes, "A loud fart doesn't stink, and a stinky fart doesn't make a sound". Generally speaking, the main component of smelly farts is hydrogen sulfide, which is caused by the retention of food such as meat and eggs in the body. The smell is foul, but not pungent.

If you release a very smelly fart, it may be related to intestinal inflammation and gastrointestinal dysfunction . If the fart has a fishy smell, there may be gastrointestinal bleeding, or malignant tumor bleeding and erosion .

3. What should I do if the "old man's taste" is suspected? Doing 3 things will help you improve

"Old man smell" is a physiological change. Although this smell cannot be completely eliminated, it can be changed by some living habits to make the smell lighter.

1, light diet, mouthwash after meals

Reduce the intake of greasy fried foods and eat less fish in moderation. These foods will oxidize fat in the body and aggravate the odor. Eat more fruits and vegetables with three meals a day. These foods contain antioxidants that can help remove bad odors.

The odor of the elderly is often caused by oral diseases. It is recommended that the elderly should develop the habit of gargling or brushing their teeth immediately after meals.

2. Change clothes frequently and take a bath frequently

The smell of the elderly is related to "no ventilation". Many elderly people neglect to clean themselves, often do not change their personal clothes, or neglect to wash bed sheets and bedding, etc., resulting in an increasingly heavier smell. It is recommended that personal clothing should be changed every two days, thermal underwear should be changed every three days, and if possible, bathe at least once every two days.

3. Keep indoor ventilation

The metabolism of the elderly is slow, and the excretion smell is heavy. If you don't pay attention to gout, the smell will stay in the bedroom.

If some elderly people need to take medicine all the year round, the smell and smell of medicine are mixed together, and the taste is even stronger. Therefore, if the weather is good, you must remember to open the windows in time for ventilation.

Everyone grows old one day, and this special smell may be inevitable for each of us. Therefore, the elderly do not need to feel embarrassed, understand this odor, develop healthy living habits, and do not have to worry about the accumulation of odors.

References:

[1] "Why do you have an "old man's taste" when you are old? An experiment to smell, smell, taste and identify age". Life Times. 2021-06-17

[2] "Southern Medical Science Station | Six major diseases of the body revealed by bad breath". Nanfang Hospital of Southern Medical University. 2017-09-01

[3] "It is easy to have an "old man's taste" when you are older? Teach you 8 tricks to get rid of annoying smells and your body will become better! 》.Health Times.2019-03-11

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