In the United States, an estimated 1 in 4 people over age 65 experience social isolation, according to the National Institute on Aging. Loneliness is the distressing feeling of having fewer or lower quality social connections than one desires. It is different than social isolation, which is the lack of social interaction. People can live alone and not feel isolated, and conversely can feel lonely while being with others. Loneliness and social isolation are known to pose health risks in older adults.

Regular social activity and communication (even by email or phone) has been linked to better brain health and reduced risk for dementia. Identifying opportunities to increase social engagement and strengthen bonds is an important way to prevent or delay dementia over time.