Researchers studied young adults who quit smoking marijuana for an average of two years, so the findings suggest that the effects of pot do not fade quickly.

The study had its limitations. Its participants were only surveyed once, so it’s hard to tell if memory problems existed before marijuana use.

The findings were based on 10 people who smoked pot heavily starting at ages 16 or 17 and compared them with 44 people of the same age who didn’t smoke the drug.

But it does fall in line with other research on teen marijuana use. Other studies have found teens who smoked pot regularly had abnormal brain growth and even a loss in IQ points.

So the lead researcher on this most recent study suggests, “If (marijuana is) an experience you want to have, you’d probably be better off if you at least wait until your early-20s.”

The study was published in the journal Hippocampus and was conducted by the Northwestern University Feinberg School of Medicine.

This video includes images from Getty Images.

http://youtu.be/6WR2s3HFglk