Contrary to the long-running joke, the stereotype of the “dumb blonde” is, well, just plain dumb. According to MSN.com, researchers found that women and men with natural blonde hair had IQ scores similar to people with other hair colors. And, women with natural blonde hair actually had a slightly higher average IQ score than those with brown hair, red hair or black hair. Researchers looked at data from nearly 10,900 white American baby boomers who had IQ tests in 1980. Read the article here.