If aging is not for sissies, that's especially true if you're homeless. You can be on your feet for hours, or forced to sleep in the frigid cold or seriously ill with no place to go. But, increasingly, the nation's homeless population is getting older. By some estimates, more than half of single homeless adults are 47 or older.
And there's growing alarm about what this means — both for the aging homeless and for those who have to foot the bill. The cost to society, especially for health care and social services, could mushroom.