The Attention Cost Nobody Talks About
Every time your phone lights up with a WhatsApp notification, your brain does something it cannot undo quickly. Gloria Mark, a researcher at the University of California, Irvine, found that after an interruption it takes an average of 23 minutes for a person to return to their original task at full focus. A single ping from your family group at 10 AM doesn't cost you 10 seconds. It costs you the better part of the next half hour.
