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November 21, 2010

Dim Light at night may lead to Depression

Most mothers may 've noticed their kids complaining about the light while going to sleep at night. Few people usually do not prefer even dim light while sleeping at night. A new study claims that night light may lead to depression. 

According to a team of researchers at Ohio State University in the US, dim light even the TV light may disturb people while sleeping, affecting the chemical balance & structure of the brain. Such light creates irritation & interferes in the secretion of the hormone melatonin. The hormone makes one aware of the night time. The study was conducted between two groups of Siberian hamsters.

The study found that dim light creates an obstruction to a sound sleep at night. Brain exposed to light at night had less networks in the hippocampus. The Dendritic spines in the hippocampus play important role transmit chemical messages from one cell to another after one sleeps at night. Researchers said that the night light stands as a barrier & Dendritic spines looks inactive being exposed to dim light too at night. The hippocampus plays a key role in depressive disorders. The study was presented at the annual meeting of the American Society for Neuroscience in San Diego.

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