http://www.skynews.com.au/health/article.aspx?id=507885&articleID=173057...

New research has found using the internet late into the night, triples the chance of young people developing mental illness.

The Sydney University study discovered those who play games or surf the net into the early hours sleep less, increasing their risk of anxiety, bipolar disorder, cardiovascular disease and weight gain.

As part of the research 20,000 Australians, between the ages of 17 and 24 were surveyed.

The study's author says the pattern has become more common in recent years, as electronic gadgets are moved into bedrooms.