Raising children with books may up their IQs later
Raising a child in a mentally stimulating environment has been linked to developing a smaller brain cortex, which in turn is linked to higher IQ.
Many low IQs are the result of bad gene luck
Scientists have discovered that many cases of low IQ or mental retardation result from random new mutations that arise spontaneously, not from faulty genes inherited from parents.
Specific genes linked to brain size, intelligence
Though scientists have suggested bigger brains are “smarter,” this study is the strongest case yet for a genetic connection to brain size and to IQ. Of course, brain size is not 100 percent correlated with a person’s intelligence, and other factors, including connections between brain cells and even a person’s experiences, play roles.
Teen IQs have ups and downs
IQ is linked to structural and functional changes in speech- and movement-related regions of the brain, and researchers have found that such changes are common in teenagers.
Lizards with high IQ shock scientists, solve brain teaser
Tropical lizards showed surprising smarts when confronted with the task of getting a hidden, insect treat.