Marijuana affects the index iq.
A supplementary judgement challenges previous research that suggested teens put their long-term brainpower in risk when they smoke marijuana heavily. Instead, the breakdown indicated that the earlier findings could have been thrown off by another ingredient - the effect of poverty on IQ. The author of the unusual analysis, Ole Rogeberg, cautioned that his theory may not hold much water skincare. "Or, it may decay out that it explains a lot," said Rogeberg, a inquiry economist at the Ragnar Frisch Center for Economic Research in Oslo, Norway.
The authors of the incipient study responded to a plea for comment with a joint statement saying they stand by their findings. "While Dr Rogeberg's ideas are interesting, they are not supported by our data," wrote researchers Terrie Moffitt, Avshalom Caspi and Madeline Meier. Moffitt and Caspi are nature professors at Duke University, while Meier is a postdoctoral companion there.
Their study, published in August in the Proceedings of the National Academy of Sciences, attracted media prominence because it suggested that smoking pot-belly has more than short-term stuff on how rank and file think. Based on an inquiry of mental tests given to more than 1000 New Zealanders when they were 13 and 38, the Duke researchers found that those who heavily occupied marijuana as teens devastated an average of eight IQ points over that set period.
It didn't seem to matter if the teens later chop off back on smoking pot or stopped using it entirely. In the squat term, people who use marijuana have memory problems and discompose focusing, research has shown. So, why wouldn't users have problems for years?
