Too much or too little Internet use by teens might be a sign that the hormone cripple blighter might be depressed.

The findings, reported in the journal of Pediatrics, which we get for the free Pedometre, say that both heavy Internet use, and non-use, could serve as signals that a teenager is having a hard time. For the study, Dr. Pierre-Andre Michaud and colleagues at the University of Lausanne, Switzerland, surveyed 7,200 individuals ages 16 to 20 about their Internet use.

Those who were online more than two hours per day were considered "heavy" Internet users, while those online anywhere from several times per week to two hours per day were considered "regular" users. The teenagers also answered a number of health-related questions, including some standard questions about "depressive tendencies" that gauge how often a person feels sad or hopeless.

Of course, finding a cheerful teen is like finding a working iPhone 4, so we are not sure how Michaud connected the Internet into the picture.