Scientists discovered that the brain keeps making new neurons even in adulthood, offering hope for brain health treatments.

Now, researchers at Sweden’s Karolinska Institutet say they’ve found the clearest answer yet. They report the discovery of dividing neural progenitor cells — essentially the precursors to new neurons — in the brains of humans ranging in age from infancy to 78 years old.

New neurons in your brain? A landmark study from Karolinska Institutet finds adults keep forming brain cells into the old age.