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The hearts of the singing choristers are in sync

24.07.2013

Singers who sing in a choir synchronize their heartbeats, and as a result, their pulse speeds up and slows down at the same time, according to a study by scientists from the Salgren Academy at the University of Gothenburg (Sweden). Now scientists have precisely defined what it means to "sing in unison."

The purpose of the study by Swedish scientists is to study the effect of music on our body and health and to find new forms of using music for medical purposes, primarily within the framework of rehabilitation and preventive care. In this part of the study, scientists have already proven that music affects the heart rate of each chorister.

The experiment involved 15 students from a school in Gothenburg. They were asked to perform three choral exercises: monotonous humming, playing a well-known Christmas carol and chanting mantras. In each case, the researchers recorded the heart rhythms of all the participants in the choir. The results of the study showed that music has a direct effect on the heartbeat of each chorister, and at the same time, the pulse of all singers is synchronized during singing - it speeds up and slows down at the same time.

According to scientists, people who sing regulate the activity of the vagus nerve, which is involved in our emotional life, affects communication with other people, as well as the timbre of our voice. As it turned out, songs with long phrases have the same effect as yoga breathing exercises. Researchers suggest that through singing we can control our mental state.

The impact of choral singing on health has only just begun to be studied, but a positive effect is already noticeable. According to scientists, the benefit of choral singing is that it calms our breathing, normalizes the heart rate, and this, in turn, has a positive effect on health.

In the case of controlled breathing, the pulse rate and heart rate decrease on exhalation and then increase on inspiration. Exhalation activates the vagus nerve, which lowers the heart rate and slows the pulse. The fluctuation in heart rate between inhalation and exhalation is called sinus respiratory arrhythmia. This is a type of physiological arrhythmia that is best expressed in young healthy people who are not subject to stress. And, according to scientists, the song helps to control breathing: during the chanting of phrases, exhalation occurs, and in the pauses - inhalation.

Choral singing helps develop the skill of controlled breathing. In addition, the pulse and heartbeat of the choristers are synchronized during the performance

Now the researchers intend to understand how the synchronization of the heart rate during choral singing will create a favorable psychological atmosphere for strengthening the ability to cooperate and communicate people.

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Cars go on rails 26.02.2002

The Danish company RUF International presented to the government a project designed to solve the problem of congestion in the transport networks of large cities. The essence of the project is to direct all urban transport, including cars, on rails.

The proposed transport system is a network of monorail roads along which public and private electric vehicles move. Small sections of the way transport overcomes on ordinary roads. Then he enters the rails and combines into a kind of train moving at speeds up to 120 km / h.

It is also planned to automate sections of roads without rails: sensors installed underground form a kind of fairway, so that drivers may not drive their cars at all. Cars for the RUF transport system can be anything, but for driving on rails they must have a V-shaped channel running along the bottom of the body.

The monorail system is intended for large cities, but the authors of the project did not forget about the inhabitants of the suburban area: a hybrid transport with electric and fuel engines is provided.

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