Why can some people sniff different smells in different seasons?

Smell suddenly because the taste is indeed different, there has been a big change, and it is a sudden change - these two conditions are indispensable for you to have a sudden, obvious notice. You can't smell it after one or two times because you are in a rich seasonal smell complex 24 hours a day, and you can't find a place where there is a smell of the previous season, and you can't smell it after your sense of taste gets used to it. The change in smell is mainly brought about by temperature, with temperature change, plants may have leaves and branches overnight, I believe everyone has experienced it; The increase in temperature can improve the efficiency of odor propagation (I don't know if this is right, anyway, temperature is an indicator of the activity of molecular movement), so that the smell emitted by everything can be smelled by you; Secondly, the human taste mechanism is also more sensitive to the smell of higher temperatures, which is why cold drinks contain a lot of sugar, and sour drinks can't stand the acid after heating.

Ah, that's how simple the truth is! "o((>o"At this point, the book has been written!! For me, the smell of spring is with the fragrance of plants, and it is relatively fresh, different from the turbid smell of winter, although there is a winter wind in winter, and there is a spring breeze in spring, but the winter wind is the only thing that has no plant smell, and there may be pollen smell in spring.

The smell of summer is stronger... Outside, the smell of hot plants is blowing in the face. Inside, in the hallway of the dormitory, I suddenly smelled a very humid and warm smell of water such as soapy bath wash and shampoo, and when I smelled this, my heart chuckled, as if a door had been opened, and I knew that summer was coming.

I'm walking here, and I'm walking in countless corridors that have smelled the same thing, the year before last, the year before last, and the corridors from many years ago. You don't have to close your eyes to see the summer sunshine pouring in through the window, the play of your friends after school, and the smile of a girl with wet hair and the smell of shampoo. Such a smile flashes in a flash, only once or twice a year in early summer.

The smell of autumn is what I hate the most, the weather starts to get colder, the light is drowsy, and I always forget what year it is, but I can't forget what year it is. The golden ginkgo biloba leaves are piled on the ground and fermented layer by layer, it smells bad, there are many people taking pictures on it, the golden autumn is theirs, and I have nothing. The smell of winter is the smell of the nose beginning to be frozen, the cold air is inhaled, the nose struggles to decompose the smell inside, and the most you smell may be the smell of haze and your own snot, which is the smell of winter.

Every season smells different Air, humidity, temperature, and season-specific plants all come together to create different scents. Spring is a warm grass seed taste. In the sweet soil is buried fresh little life.

When the sun bakes them, it will keep drilling sweetness out of the soil, and the thickness of the soil is together = = Summer is the sunset burning the banyan tree, the first sunny day after the heavy rain, the heat or humidity is always suffocating. The air smells of rainforest, desert, sun, blue sky. But it's pure and dazzling.

Autumn is honey and there is good sunshine. Countless tiny flying circles of light take the icing sugar from the maple leaves. The evening breeze comes from the bright moon, and every step I take, I hug you once.

The frosting is picked during the day, fermented at night, and perhaps mixed with some laurel for a sweet and melancholy finish. Winter is like old wine, no matter how the wind blows it, it is tightly closed. You know there are good wines, but all you know is the wind.

The trees were lonely, and the lawns were grayish-white. There is a thought, and there is also belonging. It's as if I've taken a sip of spirits, and the aftertaste is the taste of winter.

This is the first impression, for example, the first plum you eat is very sour, and your first impression of the plum in the future will be very sour. In the same way, when you smell the first smell of the season, it will remain in your mind, and if you smell it again, you will think of the season.

Each person's physical condition is different, and the discharge is different.

The smell of the human body is produced during the human metabolism process, and it is related to the substances metabolized by the human body. The substances metabolized by the human body can be roughly divided into three categories.

The first type is lipids, such as sebum and sweat secreted by **. Sebum is what we usually call the oil on the surface, which forms a sebum film on the surface. When sebum is exposed to air for a long time, it oxidizes to form lipid oxidation, which produces odors.

And we know that sweat smells too.

The second category is protein-like substances, including our excrement. The flavor of proteins when fermented is much stronger than that of lipids.

The third category is some sugars, including exhaled carbon dioxide, and some organic acids.

All three types of substances secreted by the human body emit odors.

To put it simply, it is eating habits + endocrine....

Because different odor receptor molecules can be produced in the body.

Chemically speaking, the rapid volatilization of the body's own endocrine produces a natural gas smell, which is mostly the smell of sweat and sex hormones produced by superficial apocrine glands mixed with hormones. Everyone has their own different hormone levels, and the proportion of sex hormones in sweat is also different, so everyone has their own unique taste.

Since each person's metabolic function is different, the body odor is also very different.

Some people have the faint fragrance of lotus, cheese, glutinous rice, or some kind of flower; Some are bland or have a pungent odor, which is mainly due to the sweat glands excreting sweat containing protein, and through the action of a special gram-positive bacteria, the organic acids are broken down into unsaturated fatty acids and become a characteristic personal odor. It is a lifelong personal file like fingerprints, and there will be no two people in the world who have the same body odor, which is also one of the important things to distinguish between people.

Application: Police dogs track criminals based on body odor. Modern detective scientists can also collect the "human body odor" at the scene of the crime, analyze it for chemical technology, obtain the "taste lines" of the criminals, and then transfer these "taste lines" to a special "cloth", and then store the "cloth" in a special breath file box, so as to compare and identify the body odor of the suspected criminals.

Experts say that this method is more advantageous than fingerprint crime.

When your baby is crying, give him a scarf that smells of his mother's sweat, which often helps him fall asleep quietly. Moms can also sniff out which one belongs to their baby from a large pile of laundry.

Because body odor varies from person to person, American scientist B. Klotosinski has developed a "body odor analysis cabin" that specializes in analyzing human body odor, and through the analysis of body odor components, it can roughly understand a person's gender, race, and nutritional status. Recently, Japanese scientists have made a lock with human body odor as the key. This type of lock uses the owner's smell as an indicator to control the switch, and when the owner stands in front of the lock, his unique body odor will cause the indicator to signal to open the door lock.

Because everyone's taste is unique, and you don't know it, it should be innate.

Because everyone is unique in this world.

The living environment is different, and the skin care used is also different.

Drinking milk when I was young, sweating in middle age and not taking a bath, the smell of sweat gland secretion, and I can't take care of myself when I'm old, hehe.

It seems that you haven't touched enough people, so you don't need to ask if you find the same.

Yes, for example, the weather cooled down suddenly today, and I smelled a familiar smell when I walked on the street, and I felt that I basically had to wear long sleeves after that, which was about the same as last year, and then inexplicably made me feel unhappy, and sometimes the familiarity was not liked, just like suddenly feeling that after I did this, I felt that I would do it according to the picture in my head, which was very uncomfortable, and I hated this feeling like an unpredictable prophet.

Yes It's all felt by the heart.

Wow, don't you have a great sense of smell?