[dropcap style=”font-size:100px; color:#992211;”]W[/dropcap]hen the red mist descends, the right kind of light might be enough to send it on its way
So suggests new research into light therapy for stress relief, particularly after arguments. Blue light, it appears, is effective at getting those stress levels back to normal.
Although if it’s blue flashing lights that you see after a bit of a domestic, you can probably disregard the above.
Researchers from the University of Granada (UGR), in collaboration with the School for Special Education San Rafael (Hospitaller Order of Saint John of God, Granada, Spain) have proven, by means of an objective evaluation using electrophysiological measurements, that blue lighting accelerates the relaxation process after acute psychosocial stress in comparison with conventional white lighting.
Said stress is a kind of short-term stress (acute stress) that occurs during social or interpersonal relationships, for example while arguing with a friend or when someone pressures you to finish a certain task as soon as possible.
The researchers, which belong to the BCI Lab (Brain-Computer Interface Lab) at the University of Granada, note that psychosocial stress produces some physiological responses that can be measured by means of bio-signals. That stress is very common and negatively affects people’s health and quality of life.
For their work, whose results have been published in the PlosOne journal, the researchers made twelve volunteers to be stressed and then perform a relaxation session within the multisensory stimulation room at the School for Special Education San Rafael.
In said room the participants lied down with no stimulus but a blue (group 1) or white (group 2) lighting. Diverse bio-signals, such as heart rate and brain activity, were measured throughout the whole session (by means of an electrocardiogram and an electroencephalogram, respectively).
The results showed that blue lighting accelerates the relaxation process, in comparison with conventional white lighting.
The research was led by Francisco Pelayo (Department of Computer Architecture and Technology), and it was carried out by researcher Jesús Minguillón, professor Miguel Ángel López Gordo (Department of Signal Theory, Telematics and Communications) and the bachelor student Diego Adrián Renedo Criado, in collaboration with Dr. María José Sánchez Carrión (PhD in Psychology, School for Special Education San Rafael).
Source: Eurekalert/University of Granada
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