Assertion: concussion's symptom | /r/HasProperty | resolved with most 80–90%concussions
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Source sentences:
text: Physical and cognitive rest should be continued until all symptoms have resolved with most (80–90%) concussions resolving in seven to ten days, although the recovery time may be longer in children and adolescents.[needs update] Cognitive rest includes reducing activities which require concentration and attention such as school work, video games, and text messaging.[needs update]