Pretty sure it means brain, cerebral, or cerebrum!
No; of course not! When you play a sport, whether you lose or win does very little compared to how you play and treat others. If you win, and tell another player they did horrible, or bring them down mentally in any way, you are being a poor sport.
The answer is 20 minutes. You must have 20 minutes of cardio each day to have an effective cardio exercise.
Really good and good book in general
