I have 2 sons with CF (16 & 21). Both are fairly mild cases however, one has more trouble with his lungs and the other with his pancrease. However, both are very blessed with fairly good health. They are active enough to play sports and be very social. We are currently in the hospital right now with the youngest and many things have come up while here.One of the hardest issue I have faced is the dangers of my teen being with others and the daily issues he faces of smoking both cigaretts and marijuana among other issues. This is very scary and I really wonder what other parents do and how they handle these issues. My son knows the dangers, but that doesn't mean he will comply.Help!Mom