Older Americans with frailty or dementia have higher death rates within a year after major surgery, a new study shows.

Free range DNA fragments from a simple blood draw may be signs of higher risk of frailty and dementia, a new study shows.

A third of children who undergo a procedure for a severe congenital heart condition identify as frail. That can affect their health outcomes after surgery.

Researchers have found a link between inflammation levels in the blood and frailty in breast cancer patients who've gone through chemotherapy.

New findings suggest that identifying and treating the diseases of old age should begin by the time people celebrate their 45th birthday.

Higher doses of vitamin D, referred to as "hypersufficiency," slows the progression of frailty in mice, a new study shows.

For frail patients, even common, "low-risk" surgeries could take a serious toll, which should prompt doctors to pause.