michael kors outlet Each year, a concussion occurs in about one in 10 high school athletes, the population most at risk for mild concussion. Concussion is a traumainduced alteration in mental status due to the violent rocking back and forth of the brain inside of the skull that occurs with a sudden blow to the head or upper body. Symptoms vary and include amnesia, disorientation, confusion, dizziness, headache, nausea, uncoordinated handeye movements, and sometimes loss of consciousness.WR Calvin Johnson/Lions Have you watched much football this fall? If so, there is roughly a 100 percent chance you've seen Johnson catching a TD pass over a helplessand, chances are, smallerdefensive back. He tied an NFL mark with two TD catches in four consecutive games, but the great irony is that Johnson has been a more wellrounded receiver since that streak ended. In the four games since, he has averaged 120.8 yards despite trickedup defenses to stop hi