There is a lot of family history of addictions and mental health instabilities in my family. How much of your families past problems should you share with your older teen kids? The reason I ask is because drug and alcohol addictions are problems in and of itself, but add to it the possibility of chemical imbalancements and it can have really bad outcomes. I feel knowing what our gene's are up against, might make for better decision making abilities. But at what age would be appropriate to be candid about it?