Aging
How a Medicare Advantage Exit Letter Starts Three Separate Deadlines
Non-renewal notices, due by Oct. 2, are reaching about 390,000 UnitedHealthcare and 600,000 Humana members. The deadline most of them haven't heard about is March 4, 2027, the last day to apply for Medigap without health questions.
A Study Says Brain Health Can Improve at Any Age. Read the Fine Print
A three-year study of nearly 4,000 adults found measurable brain-health gains from ages 19 to 94. The finding is real — but the sample skews narrow and there's no control group.
Stanford Drug Regrows Knee Cartilage in Mice by Blocking an Aging Protein
Blocking the enzyme 15-PGDH regrew hyaline cartilage in old mice and stalled arthritis after ACL-type injuries. Human tissue responded too — but this is still a mouse study.
Semaglutide Slowed an Aging Marker 9% in HIV Trial, Study Finds
A trial in adults with HIV found semaglutide slowed one measure of biological aging by 9% versus placebo. Researchers call it an early signal, not evidence the drug reverses aging.