Light pollution caused by watching television at night, can increase depression. That is a bad news that obtained from the findings of scientists at Ohio State University Medical Center.

The scientists studied using hamsters as experimental animals. In the experiments they do, Hamster deliberately placed in the room dim light for 8 hours a day, at night. After one week, their behavior compared to hamsters in the normal life. The result is hamsters who studied showed an increase in depressive behavior.

According to Tracy Bedrosian, the first author of the study, stated that the results obtained are consistent with what is known about depression in humans. Mood disorders that lead to depression in this study was associated with artificial lighting and television in the evening darkness.

Medically this condition eventually disrupt circadian rhythms and alter the body's normal hormonal response. This is similar to that written in the American Medical Association (AMA) at the beginning of this year, about the adverse health effects from nighttime lighting.

Bad conditions are in fact easy to overcome. The trick is to reverse the bad habits in the life of that person. Means is by way of light and dark cycles set correctly, and not to self exposure to artificial light at night. This method also has been tested in the hamster.

Light pollution in this study not only from television and computer screens, but also from the light source from the other electronic items. Such as street lights, traffic lights and light houses. The scientists found that cell signaling proteins, or cytokines known as the hippocampal TNF (Tumor Necrosis Factor) plays a limited role. They showed that the inhibition of TNF signaling will give the effect of depression.

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