Watching too much of TV may have a negative impact on kids' IQ levels, says research.
It was revealed that watching TV changes the structure of the frontopolar region, which is linked to intellectual ability.
Japanese researchers from Tohoku University looked at 276 children aged five to 18 who watched up to four hours of TV a day and found that those who spent most time in front of the box had more brain cells round the frontopolar area, the Daily Star reported.
The researchers said children with higher IQs showed "thinning" in this area.
The study is published in the journal Cerebral Cortex.