Teenagers who smoke marijuana daily are over 60 percent less likely to complete high school than those who never use. They're also 60 percent less likely to graduate college and seven times more likely to attempt suicide.
Links
[1] http://www.washingtonpost.com/blogs/wonkblog/wp/2014/09/09/study-teens-who-smoke-weed-daily-are-60-less-likely-to-complete-high-school-than-those-who-never-use/
[2] http://www.rethinkpot.org/tags/youth
[3] http://www.rethinkpot.org/tags/dropout
[4] http://www.rethinkpot.org/tags/high-school
[5] http://www.rethinkpot.org/tags/addiction
[6] http://www.rethinkpot.org/tags/suicide