Subject: What are the causes and cures of insomnia, particularly in a teenager?

I'm fifteen years old and find that when going to bed, it takes me about 
an average of an hour and a half to actually fall asleep. I know that, for 
the average person, it takes about seven minutes. However, when I do 
sleep, I often dream very vividly. I rarely take caffeine or other drugs 
that might alter my sleep patterns. Could my insomnia be due to stress?

Re: What are the causes and cures of insomnia, particularly in a teenager?