The Wall Street Journal reported recently that loneliness undermines health and is linked to early mortality- and baby boomers are especially feeling the effect. Baby boomers are aging alone more than any generation in U.S. history, and the resulting loneliness is a looming public health threat. About one in 11 Americans age 50 and older lacks a spouse, partner or living child, census figures and other research show. That amounts to about eight million people in the U.S. without close kin, the main source of companionship in old age, and their share of the population is projected to grow.