Are Lefties Really Smarter Than Righties? 

Though there are more righties in the U.S. than lefties, a new study reveals lefties might be smarter than their right-handed peers. In the research, left-handers outperformed others in math when those tasks involved difficult problem solving, such as associating mathematical functions to a given set of data. But when the task wasn’t so demanding—for example, doing simple arithmetic—there was no difference between lefties and righties. Despite the recent study, there’s still controversy in the scientific field regarding intelligence and dominant hand usage. For instance, one study concluded that left-handed kids slightly under-performed compared to righties in developmental measures. Ultimately, researchers say the jury is still out on the full picture of handedness and intelligence. (Men’s Health