Study: sitting in front of TV and computer at night increases the chances of depression

U.S. scientists said in a study that sit in front of the computer or TV screen in late-night television or run when you sleep increases the chances of depression. The study, conducted by a team of neuroscientists at University Medical Center Ohio with partial funding from the U.S. Department of Defense calls addicts sitting in front of TV and computer screens during the night to pause to reconsider. The researchers said, who offered an animal «hamster» to dim light during the night and followed the behavior changes and the brain that carry similarities with spectacular symptoms of depression in humans, that increased exposure to light industrial at night in the past fifty years coincided with high rates of depression, especially among women, who are more vulnerable for depression than men twice as. She Tracy Pedrossian, who led the study published in the journal Molecular Psychiatry »:« Our results in hamsters animals are consistent with what we know about depression in humans. Although exposure to light at night is associated with an increased risk of breast cancer and obesity but the relationship incomprehensible mood disorders. And exposed animals 'hamster' under study to dim light at night is equivalent to the light of the TV screen in a dark room for a period of four weeks and results were compared with another group exposed to natural light. The group then moved under study again to natural light for two weeks or four weeks before testing. The results showed that it was less active and less attention than usual to drink sugar-sweetened water and these symptoms are similar to signs of depression in humans. The similarities extended to its biological structure, the researchers found changes in the hippocampus, a part of the brain, consistent with what happens to people who suffer depression. And also showed animals hamsters exposed to dim light at night it produced more of a protein called tumor necrosis factor, a chemical messenger moves when the body is exposed to injury or infection causes inflammation during his quest to repair the damage. Said Randy Nelson, who participated in the study: «The researchers found a strong relationship between chronic inflammation and depression, for this reason it is very important to reach this relationship between exposure to dim light at night and increase the appearance of tumor necrosis factor. And said Pedrossian: «The good news is that people who stay up late in front of the TV and the computer can undo some of the harmful effects only through a return to the dark circle normal and reduce their exposure to light industrial night.