The "spacing effect" is a psychological phenomenon where information is better recalled if study sessions are spaced out over time, rather than crammed into a single block. It’s one of the most robust findings in educational psychology.

To leverage the spacing effect, you need to switch between subjects at regular intervals. A visual timer for 30-minute study blocks ensures that you stay on pace and don't spend too long on any one topic before moving to the next.

The clear, high-contrast visual cue of a timer ending provides the perfect signal to switch your focus, helping you build stronger long-term memories through effective spacing.

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