Multitasking makes you less productive - take ten
The New York Times beats the whole "multi-tasking reduces productivity" horse to death, reporting on another set of studies that show human brains slow down when they have to juggle tasks:
"In a recent study, a group of Microsoft workers took, on average, 15 minutes to return to serious mental tasks, like writing reports or computer code, after responding to incoming e-mail or instant messages. They strayed off to reply to other messages or browse news, sports or entertainment Web sites...[continue]