Maggie Jackson says:
“The average knowledge worker switches tasks every three minutes, and, once distracted, a worker takes nearly a half-hour to resume the original task, according to Gloria Mark, a leader in the new field of “interruption science.”
Interruptions and the requisite recovery time now consume 28 percent of a worker’s day, the business research firm Basex estimates. The risks are clear. As one top executive told me, “Knowledge work can’t be done in sound bites.” “
From Fighting a War Against Distraction via The Practice of Leadership
