All moms and dads should learn about concussion. Linda's daughter Tracy (http://tinyurl.com/lph4hw) got a concussion as a high school basketball player. Three years later, Tracy is still dealing with symptoms from the injury. Linda tells her story and wants all parents to know that if they think their child has a concussion, take them out of play and seek the advice of a health care professional. It's better to miss one game than the whole season.