Key Takeaways
- Claims that Quran memorisation "boosts brain function" are repeated constantly online, but the actual research is genuinely mixed.
- One 2021 study of Turkish schoolchildren found improvements in verbal learning, visual learning, and attention speed after memorisation training, though it had no separate control group.
- A more rigorously controlled 2020 study published in the journal Memory found no evidence that hafiz had better general memory capacity than matched non-memorisers.
- Both studies agree that memorisation clearly builds skill at memorising the Quran itself. The disagreement is whether that skill transfers to memory more broadly.
- It's reasonable to value Quran memorisation for its own sake, spiritually and for the achievement itself, without needing a claim that it rewires the brain more broadly.
Claims that memorising the Quran boosts memory or brain function generally are repeated constantly online, but the actual research is genuinely mixed. One study found cognitive improvements after memorisation training. A more rigorously controlled study found no broader memory benefit at all. Here's what both actually say.
Why This Claim Gets Repeated So Often
It's an appealing claim, and it fits a common intuition that intense memorisation must train the brain more generally. Plenty of blogs repeat versions of it as settled fact. In reality, when you look at the actual studies rather than how they get paraphrased and re-shared, the picture is far less conclusive than the confident claims suggest.
The Study That Found Improvements
A 2021 study by Sirin, Metin, and Tarhan, published in the Journal of Neurobehavioral Sciences, tested 33 Turkish schoolchildren, aged roughly 10 to 13, before and after a period of Quran memorisation training. It found statistically significant improvements in verbal learning, visual learning, attention speed, and language fluency measures.
This is a genuine, published finding, worth taking seriously. It's also worth knowing its limits: the study measured the same children before and after, without a separate comparison group of children who didn't undergo memorisation training. This makes it harder to rule out that some of the improvement came from normal development, general schooling, or simply getting more comfortable with the test format the second time round.
The Study That Found No Broader Benefit
A 2020 study by Black, Mushtaq, Baddeley, and Kapur, published in the journal Memory, took a more controlled approach. The researchers compared 10 hafiz, 12 background-matched Muslim non-hafiz, and 10 non-Muslim participants on standard tests of verbal and visuospatial memory capacity. They found no meaningful differences between the three groups, concluding there was no evidence that memorising the Quran generalised into broader memory ability.
This study's design, comparing genuinely different groups rather than measuring one group twice, is generally considered a stronger way to test whether an effect is real, which makes its null finding difficult to dismiss.
Why the Two Studies Disagree
The two studies aren't actually measuring the same thing as cleanly as the headlines suggest. The 2021 study measured children partway through active training, without a control group, which leaves room for other explanations behind the improvement. The 2020 study measured established hafiz against matched non-memorisers, testing whether the skill had produced a lasting, general advantage. It's entirely possible that memorisation training involves short-term attentional engagement that shows up in the first kind of study, without that translating into a durable, general memory advantage that would show up in the second.
What This Actually Means for You or Your Child
Both studies agree on one thing: Quran memorisation clearly builds the specific skill of memorising the Quran. What's genuinely unresolved is whether that skill transfers into memory ability more broadly, in schoolwork, in daily life, or in other subjects. If you've seen this claimed confidently elsewhere as an established fact, it's worth knowing the actual research doesn't support that level of certainty either way.
The Case for Hifz That Doesn't Need This Claim
Hifz has real value as a spiritual achievement and a lifelong connection to the Quran's text, independent of any broader cognitive claim. Our Hifz course is built around that goal directly, structured daily memorisation with a qualified hafiz, rather than a promise about brain development we can't honestly stand behind. A free trial lesson is a good way to see what the process actually looks like.
Sources: Black, Mushtaq, Baddeley & Kapur (2020), Memory, 28(8), 1014-1023; Sirin, Metin & Tarhan (2021), Journal of Neurobehavioral Sciences, 8(1), 22-27.