A mountain of research has linked loneliness to an increased risk of dementia, depression, anxiety, heart disease, stroke and early death. The Board of Supervisors of San Mateo county, which includes part of Silicon Valley, passed a resolution on Tuesday that declared loneliness a public health crisis and pledged to explore measures that promote social connection in the community.

Relative to white people, Black people face a higher risk of premature death linked to social isolation. Older adults have a higher risk of loneliness in general, since they are more likely to live alone or have chronic illnesses that limit their mobility or leave them homebound.

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A mountain of research has linked loneliness to an increased risk of dementia, depression, anxiety, heart disease, stroke and early death.

Loneliness is officially a health emergency in California's San Mateo County, which is located in the San Francisco Bay Area and includes part of Silicon Valley.

The county's Board of Supervisors passed a resolution on Tuesday that declared loneliness a public health crisis and pledged to explore measures that promote social connection in the community.

It’s the first county in the U.S. to make such a declaration.