They say that lead exposure can effect ones short term memory... but I don't believe it. They say that lead exposure can effect short term memory... but I don't believe it. Did you know that exposure to lead can have a neg effect on your short term memory? Its not proven ya know. Helpful hint for those eating Chinese food- 1) If your dumplings don't float don't eat 'em 2) If your chop sticks have no.2 stamped on the side ask for silverware!