pierluigi, what happens, what should the parents and friends of those youth also be cognizant and on the lookout for? well, i think parents need to be in the lookout for any change of behavior, any change of friends, any change of attitudes. friends need to be cognizant about those changes for several reasons. you know, we are learning more and more. we used to think that the parent was the most important voice in that children's life. today we're finding out it's all their siblings and friends that are the most important voices. so as parents, we also have to keep an eye on who are my children's friends, and as for those who are positive friendships, to make sure that we continue to support those positive friendships. but we do need to look at changing behavior, change of clothing, change of attitudes, and also some isolation and some of the other negative type of behaviors that we're pretty much learning that it leads to some unhealthy symptoms. and gail, you know, you mentioned the whole notion of the youth that are affected by some mental health problems that also go to addiction