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Science2025-03-155 min

Spaced repetition method: the science of memorization

Spaced repetition method

The brain forgets information along a specific curve. Spaced repetition uses this law.

Review before you forget — and you'll remember forever.

How the forgetting curve works

  • After 1 hour — you forget 50%
  • After 1 day — 70%
  • After 1 week — 90%

Spaced repetition "resets" the forgetting curve with each review.

90%

Of information is forgotten within a week without review

In Lisn, spaced repetition is built in automatically — the app reminds you.

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