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The researchers established observation of hamsters from two groups, according to Pannochka, an Internet publication for girls and women from 14 to 35 years old.. net Animals from the first group lived in a normal daily cycle: for 8 hours they were in complete darkness, and for 16 hours they were surrounded by normal daylight (150 lux). Animals from the second group lived the first 4 weeks of the study in a 16-hour mode at an illumination level of about 150 lux, and at night in low light (about 5 lux), which is equivalent to the light emanating from a television screen in a dark room. The results of the study were published in the pages of the journal Molecular Psychiatry.
After conducting tests on the behavior of animals, scientists found that hamsters from the 2nd group were generally less active during the daytime compared to those animals that lived under normal daylight conditions.. They also showed symptoms suggestive of depression and reduced their consumption of the sweetened water they love..
However, 2 weeks after returning to the normal light cycle, hamsters that were nocturnal in dim light completely got rid of depression and, as before, began to behave actively..
“The great news for people who sit up late in front of a TV or computer is that the negative effects of being in dim light conditions can be removed simply by returning to a normal daily routine,” says Tracy Bedrosian in a press release..
She also notes that the results of the study reinforce existing theories that regular exposure to artificial light at night plays an important role in increasing rates of depression in people over the past half century..
In the course of their work, a group of researchers discovered transformations in the brains of animals exposed to "
Scientists have found that a certain protein called tumor necrosis factor (TNF) in the brains of test animals, as well as in humans, causes depression, since its production increases when exposed to artificial light at night.. And blocking the receptors of the above protein with the help of a special drug relieves the manifestations of depression, even when the night light is preserved..
medvesti. com.