From a medical stand point, I've heard that they go through a lot of chemical changes starting at puberty that does effect the brain. Some teens can not handle this chemical change and self medicate. I've learned this because I looked for answers for my brothers' and sisters' drug dependencies. Not trying to scare you, just letting you know that there is a huge change going on with them right now.

This on top of all their social stress and education duties can be really overwhelming.

I try to tell my husband this all the time with my children... "remember when you were their age, put yourself in their shoes". Although we know those years were easy, while we were going through them, they seemed like the world was ending. They have no life experiences to tell them that they will bounce back, their world crashes so easily. If only we could install our experience in them. They will find their own way, just as we did and all the generation before us.

Sorry I rambled on, I got lost in my teen years for a moment!

Wow, three teen girls! God bless ya! I am surely dreading the teen years!

Good luck!