This government agency web site will let you access general information on schizophrenia as well as news and research updates. This link will take you to the web site.
National Institute of Mental Health
Symptoms in teens can come on gradually over 9 months or more. They can sometimes imitate those of other problems such as anxiety or depression. Especially at first, symptoms may look like the stuff of typical teen years: bad grades, changing friends, trouble sleeping, or irritability.
But there are some early warning signs in teens that show up as changes in thinking, emotions, and behavior.
Changes in Thinking
Lack of concentration or ability to follow a train of thought
Seeing or hearing things that aren't real (hallucinations)