The age-old stereotype of a person who wears glasses must be smarter or more clever than those without glasses might finally have some credence. A recent study by the University of Edinburgh indicates there’s a positive correlation between people with poor eyesight and higher levels of intelligence. They found that, of the 300,000 people they analyzed between 16 and 102 years old, those who wore glasses were about 30 percent more likely to be intelligent. They also had better longevity, better cardiovascular and mental health, and they even had a decreased risk of lung cancer. A team of more than 200 scientists discovered nearly 150 genetic regions related to clever people, but the results need further analysis to gain a better understanding of how cognitive function declines in old age.