A new study reveals how aging changes the immune system in complex ways and identifies potential targets for healthier aging. Why does immunity weaken with age, and does that decline happen the same way throughout the body? Researchers at USC approached that question by looking across the body rather than focusing on a single organ. [...]

A familiar diabetes pill could hold the power to slow the biological forces that leave the body increasingly vulnerable to disease as it ages. What if a drug already prescribed to millions of people could do more than control blood sugar? For years, researchers have wondered whether metformin, one of the world’s most widely used [...]