The statement that if you consume large quantities of alcohol and other drugs quickly, your judgement, awareness and decision making will disappear is true. Alcohol changes the way a person thinks and feels, and therefore influences how a person acts. The more a person drinks, the more impact alcohol will have.
Maddie should ask her doctor what the terms he/she used (that she didn't understand) mean. Or she can go the sarcastic route and just say "In English please."
