: Research by Dr. Sophie Leroy shows that when you switch from one task to another, a "residue" of your attention remains on the previous task for up to 20 minutes, significantly degrading performance on the new task.
: Repeated immersion in deep work can increase gray matter density in the prefrontal cortex, the area responsible for complex thinking and emotional regulation. III. The Hidden Costs of Distraction Deep Focus at Work
: A 2020 study found that 93.6% of annual productivity loss in a major manufacturer was due to simple workplace distractions. IV. Strategies for Cultivating Deep Focus : Research by Dr