DEAR DOCTOR K: I have a teenage son who plays high school football, so I'm interested in the new concussion guidelines. Can you tell me what they say?
DEAR READER: In March of this year, the American Academy of Neurology released new guidelines for recognizing and managing sport-related concussions. These guidelines could help protect the brains of athletes at all levels of play, from professional football to youth soccer. In a phrase, the new concussion guidelines recommend "when in doubt, sit it out."