Silicon Valley county becomes first in U.S. to declare loneliness a health emergency

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.