The Wall Street Journal:
“The wise man’s heart is at his right hand,” says Ecclesiastes, “but the fool’s heart is at his left.” Islamic law says that Muslims should use their right hands alone for eating and drinking, because Satan uses his left.
We may think that the preference for “right” over “left” is purely cultural, but, in fact, a growing body of evidence suggests that it is shaped by our bodily experience. Experiments find that right-handed people—and something like 90% of the population is right-handed—unconsciously prefer people and objects placed to their right; meanwhile, left-handers prefer people and things to their left.
Read the whole story: The Wall Street Journal