Effects of marijuana on teens may be ‘overstated’ — Here’s why you should still be careful
![Effects of marijuana on teens may be ‘overstated’ — Here’s why you should still be careful](http://shawglobalnews.files.wordpress.com/2018/04/8520745.jpg?quality=70&strip=all&w=720&h=480&crop=1)
A new study suggests that any cognitive impact of cannabis on youth almost completely disappears after 72 hours of abstinence.
A new study suggests that any cognitive impact of cannabis on youth almost completely disappears after 72 hours of abstinence.