For some it is the smell that comes out of the asphalt road after a hot summer's rain and is called Petrichor. For the second, it's a mixture of a great city of deodorant and sweat on the subway. And for the next, it can be tanned skin plus sun lotion and smell of chlorine coming from an outdoor pool: it is exactly how the summer smells.
"For me it is mostly the scent of freshly drowned grass, but also the hot tar, with which the streets are catalyzed in our village", recalls Hanns' hat on the summer smells of his childhood Tegernsee in Upper Bavaria.
Today is Hatt Awarded Physiologist at the University of Ruhr Bochum and one of the world's most famous scent explorers – and confirms: what we like summer smell besides, it is characterized by our individual experience and our environment and deeply rooted in unconscious memory. Because: smells penetrate immediately and without a lot of inbound pathways in the brain that is important to the emotions, the limbic system. If we smell again, the memories are coming back.
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"Moment of Madeleine": the flood of memories
Scientists call it "Madeleine Moment": what Marcel Proust In her famous novel, "Looking for lost time," when his hero smeltes a piece of Madeleine's biscuits into a tea tree of a flower of flowers and overwhelmed by a special blend of scents and flavors of childhood memories, basically we all pass. "However, how we evaluate it for us depends on whether this is a pleasant or unpleasant situation," he says Hatt.
For this reason, sweat can be used, sausages that can be baked on the grill or burned with hot asphalt tire wake up positive emotions. "These are the learned processes. When we combine scents with certain situations and emotions several times, it smells just like summer," he says. HattIn addition to childhood summer smell, then another, later learned summer fragrances if you finally move from village to town.
Summer actually smells more intense
Can we smell more intense during the summer? "Well is better supplied with heat, yes, but much more important is that it releases more molecules of smell in the environment at warmer temperatures," he explains Hatt.
At this time summer rains occur. "In the rain there are not many molecules of smell," he says HattBut, water dissolves many odor molecules so you can notice them more intensively. Among them are the exhalations of plants, the smell of bacterial soybeans in soil and rock dust.
In addition, not only an individual smell experience, but also a cultural space is important to what connects people with the typical smell of summer. Because: u Africa or Asia summer smells differently than in summer Central Europe.
Search for the ultimate summer smell
This is also confirmed by an expert fruit pulp from the end. Works as a perfumer for company Symrise and on the trail is the ultimate summer smell, so to speak.
"There are different cultures and therefore preferences, that is clear. However, the world looks like this Europe and especially he France"For the perfume it means:" The summer smells smell the light and the flowers. In recent years, more of the Mediterranean, with a fruitful note. For citrus or bergamot. "
Even in the world of perfumes here and there, they try to achieve the "effect of the beach" – people in the sun, sand, sea and wind. Not so easy. "The perfume must not disappear suntan lotion but after tanned skin. "Also, certain summer green notes and certain humidity are trying to create smells in the bouquets of such summer perfumes to intertwine. A complicated venture, which requires beautiful nips and above all years of training, reports the end.
And finally: A freshly cut grass in grandparents 'or grandchildren' s garden or on the scent of chlorine – Pommesa in the open pool, the first time they fall in love, such perfume still draws a short straw.
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From RND / dpa