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Brain changes found in teens with smartphone, internet addiction

Adolescents with smartphone or internet addiction had significantly increased ratios of gamma aminobutyric acid, a neurotransmitter that inhibits brain signals, to glutamate-glutamine, a neurotransmitter that excites neurons, in their anterior cingulate cortex, as well as significantly higher scores in anxiety, depression, impulsivity and insomnia, compared with healthy controls, South Korean researchers reported at the Radiological Society of North America meeting. The findings also showed that GABA to GIx ratios significantly declined or normalized among those with smartphone or internet addiction who underwent cognitive behavioral therapy for nine weeks.

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