A group of researchers from the University of Leiden in the Netherlands, vyyasnila that too long-term continuous exposure to artificial light can lead to negative consequences for health, including immune function, muscle health, and bone and, of course, for circadian rhythms. However, experts said, and good news — apparently, these changes become irreversible, if given time to recover in conditions of alternation of day and night.
Scientists at 24 weeks put laboratory mice into the room, not continuously reported the increasing and relentless artificial light. The rest of the living conditions of rodents for nearly half a year was quite acceptable. However, comparing the health status of the mice before the experiment and after the moment when the time has come to release them from the lighted room, the scientists found that their condition has deteriorated in many aspects.
The most obvious result was the disturbance of circadian rhythms, allowing the body to work “subject to” the change of day and night, in conditions of constant illumination from such systems simply do not have sufficient guidelines. This in turn has had a negative impact on the brain of rodents.
Laboratory animals are faced with other problems. In particular, the researchers drew attention to the fact that their muscles are significantly weakened, and the bones began to wear out — this occurs during aging, but the mouse has not yet reached an age where their view it would be relatively natural. Also the animals were observed inflammatory processes which in a normal situation the immune system is “launched” only in the presence in the body of pathogenic microorganisms.
After the “main” part of the experiment mice the mice were placed in the “normal” conditions, involving natural light and also the change of day and night. As it turned out, just two weeks health rodents came back to normal. However, according to experts, this does not mean that the negative effect of too long for artificial lighting to be underestimated.
Summing up the results of their work, the results of which are presented in the journal Current Biology, specialists recommend that people “often turn off the lights”.Related posts: