Cramming works for tomorrow, spacing works for life
What they found
The same hours of study produce far longer-lasting memory when they are spread out over days instead of packed into one session. The best gap grows with how far away you need the knowledge.
How they know
Researchers combined lab experiments with a study of over 1,300 people learning facts, then tested them after delays from days to months, mapping which study gaps held up best.
What it means for you
Decide when you need to still know it, then space the reviews - for a test in a month, revisit after a few days, not the same evening. Two short sessions beat one long one.
The limits
Best established for facts and vocabulary; the ideal gaps for skills like negotiation or conversation are less precisely mapped.
This is a short takeaway in our own words, not a reproduction of the study. For the method, the sample and the caveats, read the original.
