Learning another language may influence brain aging, according to an analysis presented at a neuroscience meeting that used an artificial intelligence model to estimate “brain age.” The presenters reported that, by the model’s measure, people who spoke multiple languages showed brain‑connectivity patterns resembling younger adults compared with monolingual participants.
- Bilingual participants: ~6 years younger (model estimate)
- Three languages: ~7 years younger (model estimate)
- Four languages: ~13 years younger (model estimate)
What the study found about learning another language
The analysis, presented at the 2026 Federation of European Neuroscience Societies Forum, compared AI‑derived brain‑age estimates across people in Spain’s Basque region who spoke between one and four languages. Using a model‑based measure, researchers reported that bilingual participants’ brains appeared about six years younger than those of monolingual participants. Participants who spoke three languages showed an average difference of about seven years, while those speaking four languages had differences approaching roughly 13 years younger by the model’s metric.
Presenters also noted larger apparent benefits among people who learned a second language earlier in life and among those who achieved higher fluency. The team emphasized these are associations derived from a statistical model and not direct biological measurements.
How researchers measured brain age
Investigators used artificial intelligence to estimate a person’s “brain age” from patterns of brain connectivity measured with neuroimaging. The model was trained to recognize connectivity profiles that typically appear at different chronological ages and then output a model‑based age estimate for each participant.
Because the number is model‑based, it represents how closely an individual’s brain‑network patterns resemble those of younger or older groups in the training data. That makes the approach useful for comparing groups but also sensitive to choices in model design, the imaging methods used, and the demographic makeup of the training sample.
Model‑based brain‑age estimates are not direct measures of biological aging; they are statistical constructs that depend on the model’s training and assumptions. Differences in estimated age therefore indicate pattern similarity rather than a literal reversal of biological age.
Who was studied and key limits
The sample came from Spain’s Basque region and included speakers of Basque, Spanish, French, English and other languages. Participants reported speaking between one and four languages. Researchers adjusted analyses for several demographic variables, including chronological age, sex and education level.
However, the study has important limitations. It is observational: researchers could not rule out other factors that might both encourage multilingualism and support brain health, such as childhood environment, socioeconomic status, lifestyle, occupation, social engagement or genetic influences. Because of these potential confounders, the findings do not prove that learning another language causes slower biological brain aging.
The presenters also cautioned that the results reflect a conference presentation of an analysis; details about peer review, full methods and replication in other samples were not part of the initial report. Generalizability outside the Basque region or to different age and cultural groups remains uncertain.
What this means for adults who want to learn another language
The new analysis adds to a body of research linking multilingualism with measures of cognitive health, but it does not settle whether starting a language later in life produces the same long‑term effects as early bilingualism. Still, randomized controlled trials with older adults provide complementary evidence that language training can produce short‑term cognitive gains.
Dr. Tommy Wood, a neuroscientist and author not involved in the study, has summarized trial evidence showing that a few months of focused language training can improve attention, working memory and executive function in older learners. Those trials suggest adults retain neuroplasticity and can benefit from structured practice, though the size and duration of effects vary with the program and learner.
Practical advice from researchers and adult‑learning experts emphasizes realistic goals, frequent practice and social use of the language. Factors that likely matter include age of acquisition, the intensity of practice, and the degree of eventual fluency: effortful, meaningful use of language — for example, conversations, reading and active listening — is more likely to drive neural change than passive exposure alone.
If your goal is cognitive benefit, consider combining language learning with other brain‑healthy behaviors: regular physical activity, social engagement, good sleep, cardiovascular risk control and mentally stimulating activities all have evidence linking them to brain health.
Study details and source attribution
The analysis was presented at the 2026 Federation of European Neuroscience Societies Forum. Reporting on the presentation was summarized by Fox News Digital.
Sources: Fox News Digital — Learning another language may keep your brain younger, study suggests; Federation of European Neuroscience Societies Forum — fens.org.
Limitations and causation note: The study’s findings are observational and based on a model‑derived brain‑age estimate. Observational associations do not prove causation, and researchers could not rule out unmeasured confounding. The brain‑age metric is model‑based and sensitive to imaging and analytic choices.
Conclusion
This analysis suggests a link between multilingualism and younger‑appearing brain connectivity patterns by an AI model, with larger model‑estimated differences for people who speak three or four languages. The evidence is preliminary and does not establish that learning another language will slow biological aging. Nonetheless, randomized trials and principles of neuroplasticity support the idea that adults can gain cognitive benefits from structured language learning. For those interested, focusing on consistent, challenging practice and social use of the language—combined with other healthy behaviors—offers a reasonable, low‑risk approach to support brain health.
Frequently asked questions
Can adults slow brain aging by learning another language?
Current evidence shows associations in observational analyses and some short‑term cognitive gains in randomized trials. Observational studies using AI‑based brain‑age estimates do not prove that language learning slows biological aging.
How many languages are linked to larger effects?
In this analysis, bilingualism was associated with about six years younger brain age by the model, three languages about seven years, and four languages roughly 13 years. These model‑based numbers may not generalize to other samples.
Do these results prove learning a language causes a younger brain age?
No. The study is observational and model‑based. Researchers could not rule out other contributing factors, so causation is not established.
