Kids of angry, impatient parents are more likely to bully others.
Being bullied at school leaves a lasting mark on young victims' bodies and minds years after the bullying ends, a new study shows.
Researchers found that bullying had its greatest influence on the health of kids who were repeatedly targeted, and it was linked with poorer mental and physical health, increased symptoms of depression and lower self-esteem.
The study also revealed that victims of recent bullying fared worse than students who had been picked on by their peers further in the past.
"The effects of bullying can snowball over time," said study researcher Laura Bogart, a social psychologist at Boston Children's Hospital.
Children who experience continued bullying, such as in more than one grade, had more severe effects, she said.
"The results are a strong argument for an immediate, early intervention of bullying," Bogart said. [10 Scientific Tips for Raising Happy Kids]
The findings were published online today (Feb. 17) and will appear in the March issue of the journal Pediatrics.
In the study, the researchers surveyed nearly 4,300 students attending public schools in Los Angeles, Houston and Birmingham, Ala. They collected data from students when they were in fifth, seventh and 10th grades, and also from their parents.
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