Opinions expressed by Entrepreneur contributors are their own. You’ve likely heard that multitasking is problematic, but new studies show that it kills your performance and may even damage your brain.

In a world of multitasking and constant distractions -- from the ping of texts and emails to everyone having to wear more hats at work than they used to -- time management is one of the biggest ...

Rachel Feintzeig’s “Lies We Tell Ourselves About Multitasking” (Personal Journal, May 8) makes me wonder about my profession. I was a simultaneous interpreter at the United Nations for 55 years. The ...