Research
Curiosity may protect the brain against Alzheimer’s – at least in mice
Article no. 58 · November 3, 2026 · Updated November 4, 2026 ·
Could curiosity be a way for the brain to defend itself against Alzheimer’s disease? A new study in mice offers a surprising answer. Mice that kept exploring their surroundings were better able to withstand some of the disease’s effects.
Why does Alzheimer’s affect people so differently? Some develop serious memory problems early on, while others function relatively well despite clear signs of disease-related changes in the brain.
Researchers at Huazhong University of Science and Technology in China have explored one possible explanation. The study was published on October 27, 2026, in the scientific journal Neuron.
The researchers focused on a small and relatively little-known part of the brainstem, the Edinger–Westphal nucleus. It is associated with eye function, among other things, but research suggests that it may also be part of neural circuits that influence how we pay attention to and explore our surroundings.
Curiosity may help the brain
In mice with Alzheimer’s-like changes, the researchers found a link between pathological changes in the tau protein, altered activity in neural circuits, and the ability to explore their surroundings.
The findings suggest that the brain can activate compensatory mechanisms that help the animals function despite the disease-related changes.
What is interesting, then, is not just that curiosity may matter. The study also suggests that the brain has some capacity to compensate for damage.
Could the same be true for people?
The study was conducted in mice, not people. It does not show that curious people are less likely to develop Alzheimer’s or that curiosity slows the progression of the disease. But it raises an interesting question: