But these nocturnal gatherings in front of a flickering screen is not as harmless as it may seem.Psychiatrists have long noticed that watching TV at night leads to depression, because the problem to them are turning people possessed such a mania.And most recently, this theoretical version was confirmed in practice.

Scientists from the American University of Ohio published the results of its long-term studies on the impact that a dim light on the mental state of a living being.Fortunately, the subject of the study were not people, and two groups of ordinary pet hamsters.When the first group lived in the standard conditions of existence similar to natural daylight cycle of 8 hours, they were carried out in the dark, and 16 - in the light conditions of 150 lux, close to daylight.The second group of 16 hours a day and live in the daylight.The remaining 8 hours, they are not held in the dark and in the light of 5 lux, the equivalent illumination from the TV screen.

course, hamsters from the second group are not scientists began to complain of bad mood and unwillingness to live.The fact that they are experiencing stress, researchers have realized by the fact that these hamsters have become indifferent to the sweetened water, so loved by them earlier.Life has ceased to please them, they began to behave less active and apathetic, were less likely to copulate.In contrast to the hamsters in the first group, remained interested in the opposite sex and love sweet water.

head of this interesting study, doctoral student in neuroscience University Tracy Bedrosian said that the cause of the depression becomes a specific protein called tumor necrosis factor.He begins to be produced in the body of a living being under the influence of weak artificial light.Fortunately, scientists have left no chance for those who like to sit at night in front of a computer monitor or a TV.Studies have shown that when the second group of hamsters was returned to normal living conditions, symptoms of depression disappeared after a while.