Sex life can improve nasal congestion, beard and beard is more resistant to beatings, discarded chewing gum is also useful, cats have more than a dozen languages... The 31st Ig Nobel Prize was announced before the announcement of the Nobel Prize. The award recognizes research that seems ridiculous at first but thought-provoking. This year's award-winning projects also contain health science knowledge in light and humor.
■ "The power of love" can improve nasal congestion
This Ig Nobel Prize in Medicine-a German research team's study on the "relationship between sexual behavior and nasal function" shows that sexual activity can be Improve nasal ventilation like a nasal vasoconstrictor, effective for up to 60 minutes, and then gradually return to the original level after 3 hours.
In addition, previous studies have shown that physical exercise, temperature, body position changes, hormones, nervous system syndrome and other factors can affect nasal function. For example, aerobic exercises such as swimming and running can help reduce nasal resistance and relieve nasal mucosal congestion symptoms.
■ Men's beard can protect the chin.
The chin is one of the most common facial fractures in interpersonal violent conflict. The team of scientists at the University of Utah led by David Carrier won the Ig Nobel Peace Prize for verifying the hypothesis that " human evolution had a beard to protect itself from facial blows".
Theteam used the skin of domestic sheep (sheep's down is quite close to human hair) for research. The results show that compared with shaved sheepskin and plucked sheepskin, furry sheep skin can absorb about 37% more energy generated by impact, and because of the protection of hair fibers, the impact force is transmitted to the bones for a longer time and can be reduced. Destructive. Therefore, a thick beard can protect the fragile facial area from destructive blows.
■ Chewed gum is also useful
Chewing gum is one of the oldest candies in human history. Chewing gum has the effects of cleaning the mouth, exercising facial muscles, focusing attention, and relieving emotions. Since the human body cannot digest the high-molecular gum base, it needs to be spit out and discarded after chewing.
The chewing gum has also been asked by the university! A study on the flora of waste chewing gum showed that waste chewing gum contains a moderately diverse flora. Some species will be replaced by the flora in the environment after a period of time, and some species can be colonized in the gum base. There are also some strains that can degrade chewing gum ingredients, which can be said to be a treasure house of flora.
This research is of great significance to the fields of forensic medicine, infectious disease control or the bioremediation of waste chewing gum residues, so it won the Ig Nobel Prize for Ecology.
■ The content of the movie affects the smell of the audience.
When watching different types of movies, the audience exhales different gas. A team from the Max Planck Institute in Germany won the Ig Nobel Prize in Chemistry. A study they conducted showed that compared with most ingredients, the isoprene exhaled by the audience in the cinema can better distinguish the film. Type and age segment.
Isoprene in the human body can be produced during the process of cholesterol production, stored in the muscle tissue, enters the bloodstream with muscle movement, and is discharged out of the body through breathing. The study showed that when people watch suspense films and comedies, their heartbeat and breathing will increase, leading to a sharp increase in isoprene. In the future, it may be possible to use isoprene and other ingredients to assess the rating/age classification of movies.
■ There are more than a dozen "cats" languages
cats are called "cats",It has a lot to do with people who generally regard "meow" as an onomatopoeia for meowing. A human-cat communication expert from Lund University in Sweden found in his own cat research that cats can call as many as 19 kinds. This research won the Ig Nobel Prize in Biology.
Research shows that the different calls of cats can express different behavioral states and emotions of cats, such as tremolo for greeting, purring for relaxation and friendliness, chirps are imitating bird calls, and screaming or screaming means it is in pain Or a state of stress.
The cry of cats is also good for human health. Previous studies have found that cats' low-frequency purring can calm people's nervousness, improve sleep, relieve symptoms of shortness of breath, reduce the risk of heart disease, and even maintain bone strength. In addition, keeping cats can stimulate the brain, help slow down memory decay, improve depression , and help children adapt to allergens and improve immunity.
(Tian Ru, Li Yimeng, according to Health Times)
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