Manténgase sano!

Vicki Bickford is a professional caregiver, but lately she's been worried more and more about her own aging.

Bickford, 66, has aggressive arthritis that has required hip replacements and has now spread to her knees, as well as degenerative disc disease in her spine.

She's made modifications to help her stay in her home -- sliding glass doors, a ramp, a day basement -- but it has cos...