Recent studies demonstrated that the relationship between brain structure and intelligence not only involves grey matter, but also white matter - the brain's wiring system.
A long-term study of 565 children who grew up in the era of leaded gasoline has shown that their exposure to the powerful neurotoxin led to a loss of intelligence and occupational standing by the time they reached age 38.
A diet, high in fats, sugars and processed foods in early childhood may lower IQ, while a diet packed full of vitamins and nutrients may do the opposite, suggests new research.
