In many cases, we'll smell some of the more special taste in older people.

Especially more pronounced in the elderly and sick older people, difficult to describe the taste, smell a lot of older people themselves often do not come out.

What smell that? Why only in older people can smell? Here's a look at science

What is the "old flavor"?

Scientists United States, Sweden, Japan and other countries are doing a lot of research on this phenomenon, found the old man taste does exist. It is mainly produced by the body metabolism to "2-nonenal (C9H16O)" such unsaturated aldehydes have a certain relationship.

Middle-aged over 40 years, body antioxidant substances will be gradually reduced, the skin surface will secrete 2-nonenal generates bulk, old taste inevitably arises. Because fast metabolism and Young, difficult to produce bulk 2- nonenal, so young people who generally do not have the smell. Therefore, there are Japanese scholars called it "Aging and smelly."

On the other hand, with age, the body's metabolism starts to slow down, easily deposited surface of the skin of dead skin. If we do not clean up, piled up, over time, the body surface of the bacterial decomposition will produce a specific odor.

In addition, long greasy diet, too little exercise, poor sleep also increases the secretion of the sebaceous glands, increase blood cholesterol levels, but also prone to odor. It is also more common in elderly men than women taste, a more obvious reason.

Of course, who can not all be attributed to the age of taste as a result, such as the following to say them.

What body to be alert to taste?

Clinically some taste may be related to certain diseases, if there is, it is recommended to the hospital:

Whiff

The most common in uremic patients, because the kidneys can not effectively excrete toxins caused.

Rotten apple

The most common in patients with diabetic ketoacidosis, because the body significantly decreased insulin, glucose can not enter cells, but to provide energy in vivo use of protein, fat and other non-sugar substances. When the fat is not completely oxidized will produce pyruvic acid and other substances.

Garlic

Common to organophosphate poisoning, gas exhaled by the patient, there will be irritating sour vomit.

Sour smell

The most common in patients with dyspepsia.

Rancid

The most common in patients with cirrhosis, liver dysfunction.

"Old flavor" Why own smell?

There is a medical term called "olfactory adaptation", usually people do not perceive themselves very sensitive to the taste.

Results in the formation of the main component of the old flavor - "2- nonenal", is not high in the secretion of the normal population, it will not produce obvious, very strong odor, especially in comparison personal hygiene and health situation next, the taste is even more noticeable.

"Old flavor" can eliminate it?

Normal human body secretes a variety of metabolites, as long as timely attention to personal hygiene, wash the body clean and replace household items, is do not worry about the accumulation of odors.

Of course, with age, the body inevitably there will be all kinds of discomfort. Regular physical examination, and timely medical treatment, early detection and early treatment of disease, avoiding minor illnesses dragged into a serious illness.

Finally, the need to maintain a good attitude, science diet, reasonable exercise. The more healthy life and body, the less prone to unhealthy metabolites, the more difficult the residual abnormal body odor.