Why can a Pomodoro break spent on your phone actually fail to rest your attention?

Because scrolling social media is task-switching, not recovery — it keeps your attention loaded instead of releasing it.

The point of a break is to let sustained attention recover. A break spent rapidly switching between posts, messages, and videos keeps the attentional system busy and can leave you as depleted as before, sometimes more distracted.

Worse, during study itself, laptop and phone multitasking reliably harms learning. Sana et al. (2013) found that students multitasking on laptops in a lecture scored lower — and so did nearby students who could merely see the multitasker's screen. So a real break means genuinely stepping away (walk, stretch, stare out a window), and study time means the device is out of reach unless it's the study tool itself.