July 10 (UPI) -- Loneliness dramatically increases a person's risk of depression and poor health, a new study says. Half of folks who say they always feel lonely (50%) have clinical depression, compared with just 10% of those who report never feeling lonely, researchers reported Wednesday in the journal PLOS One . They also have many more days when their mental or physical health falters, researchers found. "People who felt lonely 'always' had a fivefold increase in depression risk, 11 more