Scientists are studying the effect of light onthe human body for many years. Lighting of the surrounding space really has a huge impact on a person - you probably noticed that when there is insufficient lighting, you begin to be drawn to sleep? A recent study by Swiss scientists showed that the intensity of daylight penetrating into a room can even affect a person's ability to sense temperature. For example, being in a well-lit but cold room may make people feel warm. Because of this discovery, builders can change the construction of buildings - after all, why install powerful heaters when you can simply put large windows?
The discovery was made during the experiment,conducted by a group of Swiss scientists led by Professor Georgia Chinazzo. At the very beginning of the study, scientists recruited a group of volunteers consisting of 42 men and 42 women aged 18 to 25 years. Each of the participants in the experiment spent three hours in rooms with a temperature of 19, 23 and 27 degrees Celsius with low, medium and high levels of daylight. The light intensity was controlled by colorless filters on the windows.
How does light affect a person?
For the purity of the experiment, scientists did nottell volunteers that the study is about studying their perception of temperature. To distract people's attention, scientists handed them sheets with various logical tasks. In one of the exercises, the authors of the experiment hid a survey in which volunteers were asked to evaluate the temperature in the room and the general level of its comfort. At the same time, they controlled the body temperature of the participants by attaching special temperature sensors to their bodies.
The experiment showed that at a low levelIn daylight, people in a room with a 19-degree temperature felt uncomfortable and complained about the cold. In the same room, but with more intense daylight, there were other participants in the experiment - they indicated on the survey sheets that they felt great in the room. At the same time, the body temperature of both groups of people did not change at all, that is, the perception of heat changed only in their heads and sunlight does not play any role in the sensation of heat.
This is interesting: Why do moths fly into the light?
Other participants in the experiment spent time inwarmer rooms with temperatures of 23 and 27 degrees Celsius. In this case, people felt more comfortable at low light levels, and at high experienced discomfort. Differences in body temperature were also not recorded, that is, in fact, a sense of comfort is just a psychological effect.
What will be the houses of the future?
Scientists believe their discovery is goodthe reason for changing the design of many buildings. To reduce energy consumption by installing less powerful heaters, builders can install large windows to let in more daylight. Thus, even if the room is quite cold, people will still be comfortable.
By the way, in the future the buildings will be built of transparent wood.
It sounds interesting, but there are two important questions. Firstly, is the installation of weak heaters and air conditioning not a hoax to people and whether the imaginary feeling of comfort will affect people's health? Secondly, it is very interesting how people survive at night - there will be no daylight, so will you really have to stock up on blankets and endure the cold?
Be that as it may, builders are unlikelylisten to the results of the study. The fact is that the study was conducted with the participation of only 84 people and the results may be inaccurate. To change the design of buildings in which thousands of people will live, more compelling reasons with reliable evidence are needed.
How to make a room warmer?
However, we can benefit from this.research right now. Now we know that if the room is cold, you can try to let more daylight into the room. If the conclusions of the scientists are correct, we should become warmer - this is especially true in the fall, during a temporary lack of heating. By the way, I want to know - have you already been given warmth, or do you spend evenings under the covers? Let's talk about this in our Telegram chat, where more than 3,000 people have gathered.</ p>