The Left-Handed Advantages and Disadvantages
Only about 5% to 30% of people in the world are left-handed. Then again, as many lefties might point out, being left-handed can also offer intellectual prowess. Tests conducted by Alan Searleman from St Lawrence University in New York found there were more left-handed people with IQs over 140 than right-handed people. Famous left-handed thinkers in history from Albert Einstein to Isaac Newton to Benjamin Franklin seem to underline the point.
Lefties Have an Advantage in Some Sports