Here are a few quotes from the article:
"The Government-commissioned report has also found that taking the drug regularly more than doubles the risk of serious mental illness."
"You only need to see one person whose mind has been altered and life irreparably damaged, or talk to their family, to realise that the headlines are not scaremongering but reflect a daily, and preventable, tragedy."
You can read more here.
-Is cannabis really dangerous?
-Is it healthier than cigarettes?*
-Do you know anyone who smokes marijuana? If so, do you see signs of mental illness?
*According to the National Institutes of Health, studies show that someone who smokes five joints per week may be taking in as many cancer-causing chemicals as someone who smokes a full pack of cigarettes every day.