While social isolation has long been known a risk factor for Alzheimer’s disease, a new study showed that being more sociable can be an early sign of the neurodegenerative disease.

The study examined the social habits and genetic data of half a million British people whose average age was 56.

Researchers from the University of California San Francisco and Boston University found that Alzheimer’s may make people more sociable rather than less -- at least in the early stages.