Kim Griswold Holmberg's older daughter worries about her.
"She worries that her old mom spends way too much time alone," said Holmberg, 61.
And it's true, she said. "I've been alone for the last 12 years, essentially."
That's how long ago Holmberg divorced, after a 25-year marriage. Now she lives in an apartment in Plymouth — usually alone, although her younger daughter, 25, is living there temporarily. Her other daughter lives in Vietnam, so they get together only once a year or so.
Holmberg recently broke off a 12-year relationship with a man in Duluth — a long-distance relationship that left her alone much of the time. Most of her friends are married and busy with other things. Even at work, Holmberg spends whole days alone, sitting in model homes as a representative for a builder, waiting for the occasional drop-in visitor.
Holmberg makes an effort not to dwell on loneliness.
"I know a lot of people my age suffer from varying degrees of depression because of it," she said. "It does become a mind-over-matter kind of thing."
Depression is one of the most obvious signs of loneliness. But as researchers increasingly investigate the health effects of social isolation, they've linked it to a host of emotional, physical and cognitive problems.