The New York Times:
Think for a moment about your typical workday. Do you wake up tired? Check your e-mail before you get out of bed? Skip breakfast or grab something on the run that’s not particularly nutritious? Rarely get away from your desk for lunch? Run from meeting to meeting with no time in between? Find it nearly impossible to keep up with the volume of e-mail you receive? Leave work later than you’d like, and still feel compelled to check e-mail in the evenings?
Working in 90-minute intervals turns out to be a prescription for maximizing productivity. Professor K. Anders Ericsson and his colleagues at Florida State University have studied elite performers, including musicians, athletes, actors and chess players. In each of these fields, Dr. Ericsson found that the best performers typically practice in uninterrupted sessions that last no more than 90 minutes. They begin in the morning, take a break between sessions, and rarely work for more than four and a half hours in any given day.
Read the whole story: The New York Times