Pot smoking could lead to lower IQ
Originally aired: Tuesday, August 28, 2012
That's why they call it dope. A new study suggests teenagers who smoke a lot of pot could be doing permanent damage to their brains.
The decades-long study of 1,000 New Zealanders
seems to show if you smoke marijuana heavily as a teen, your IQ drops by about 8 points and that drop persists into adulthood even after you've quit.