A large British study suggests that living with others, whether another person, or even a pet, may slow down the decline in cognitive skills that tends to come as people age.

Cognitive decline in older adults is a major public health issue, with almost 10% of U.S. adults ages 65 and older estimated to have dementia, and 32% estimated to have some degree of cognitive impairment. Previous research has shown that living alone and social isolation are associated with an increased risk of cognitive decline with age.

“Research indicates that having long-term, high-quality relationships, whether that’s with family, friends, or romantic relationships, is not only important for happiness, but for promoting good brain health and reducing the risk for dementia,” said Dr. Leah Croll, assistant professor of neurology at the Lewis Katz School of Medicine at Temple University.__