Eighty-three-year-old Betty Givens welcomes two visitors to the home she shares with her daughter in Riverside, Calif.
"Hi, how are you?" asks Melinda Underwood, an occupational therapist.
"Oh, a little lightheaded," Givens says, almost apologetically.
Underwood and clinical social worker JoJean Harper are concerned, but it's one of many things they can address that will help Givens remain in her home as long as possible.