Teenagers must exercise. Get 30 minutes worth of exercise each day. Exercise allows the body to release toxins through the sweat glands. In addition, it increases neural transmitters that allow the mind to remain calm and sleep better. Furthermore, when they sleep better, they will dream more clearly. Once your child starts dreaming, her Achievement Mechanism will be turned on.
Exercise also allows your child to eat more efficiently and to burn calories more evenly throughout the day. This is important because she will be sitting in the exam room for nearly three hours. She will need to condition her body (along with her mind) for this ordeal long before she gets there.