Human beings are living longer than ever, which can be a wonderful thing. As the T-shirts say, life is good. But human longevity has big consequences for society, which is one reason President Obama is hosting today’s White House Conference on Aging. It’s great that we can get new hips when our old ones wear out, but someone has to pay for them. It’s great that Baby Boomers will

Aging reduces the production of new immune cells, decreasing the immune system’s response to vaccines and putting the elderly at risk of infection, but antioxidants in the diet may slow this damaging process. That’s a new finding by scientists from the Scripps Research Institute in Florida, published in an open-access paper in the journal Cell Reports. The problem is focused on an organ called the thymus, which produces T lymphocytes

Prime factors for a higher probability of reaching age 100+ are long telomere length and low inflammation. Newcastle University’s Institute for Ageing in the UK and Keio University School of Medicine in Japan note that severe inflammation is part of many diseases in the old, such as diabetes or diseases attacking the bones or the body’s joints, and chronic inflammation can develop from any of them. The study was