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Joanna didn't have any visible injuries or show any signs of distress for about an hour, but she eventually told staff she felt unwell and was picked up by a relative, he said. Urbina, the older sister, said Joanna's cousin picked her up. After her mother retrieved her, Joanna vomited in the car all the way home and told her mother she felt sleepy and wanted to go to bed. Symptoms -- such as headache, nausea, lethargy -- may not set in for hours and people can mistakenly think that they're fine, Black said. Typically, he said, the hit to the head would have to be fairly significant to cause a blood clot and often involves the head hitting walls or the ground, but a punch is enough. "You can certainly get enough of an impact to get enough movement in the brain by a fist to tear a vein, if it's in the right location," Black said. Police have said the fight lasted less than a minute, did not involve weapons, and no one was knocked to the ground. A friend of Joanna's saw her as she reported to the after-school program after the fight and said she had blood on her knuckles from wiping at a bloody nose, said Cristina Perez, the friend's mother. Perez said her daughter, who is 10, heard about plans for the fight, apparently over a boy, during recess earlier in the day and knew to stay away from the alley after school. Fights involving young children, including girls, are increasing nationally, in part because of the wired world children now live in, said Travis Brown, a national expert on bullying and school violence. Children used to have a disagreement at school and would have a night or a weekend to cool down, but social media and text messaging mean students can continue their dispute 24 hours a day, he said. "There was a time when a kid had a way to escape the things at school, but now there's no escape," Brown said. "That stuff just escalates to a point where it gets out of hand. This is an everyday occurrence."
[Associated
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