Toyota introduced an all-electric variant of its iQ minicar, called the eQ, back in 2010, but the actual development of the vehicle hasn't apparently been all unicorns and sunshine. The car company has revealed that they've backed off their rather grandiose plans and will now only sell about 100 of the eQ variants in the United States and Japan.
Scientists digging through data from a 1970 British Cohort Study that followed nearly 8,000 people over a span of decades have recently published a paper concerning their findings that high childhood IQ was linked to above-average self-reported drug use in adult life; kids with high IQs tend to do drugs as adults. The study, published in the Journal of Epidemiology and Community Health, took much of the information collected by the Cohort Study, including socioeconomic status, levels of psychological distress, and found that the IQ-drug use parallels still existed even when controlling for these other variables.
There's a pretty common misconception that IQ is something that is innate, or even that it's something established early on in life and then doesn't change. There's also the common misconception that IQ is a consistent, established, and testable unit of measurement, but that's a whole different can of worms. Cathy Price of University College London and her team conducted a study to try and dig into the real story behind IQ. What they found was that, however you measure it, it's a number that's in flux well into the teenage years.
The study involved testing 33 teenagers between the ages of 12-14 in 2004 and the same 33 again in 2008 when they were 16-20. Along side standard IQ tests measuring verbal and non-verbal intelligence, the researchers took MRI images of the kids' brains during the tests in order to get deeper results. What they found was that the teens could drop or rise up 20 points, and not just in a specific area, but in all areas or any combination thereof.