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. [...]

Some of the healthiest foods may quietly fuel gut inflammation in people with inflammatory bowel disease (IBD). The compound, called oxalate, is abundant in foods such as spinach, almonds, and sweet potatoes. It is best known for contributing to certain kidney stones, but new research suggests that oxalate left inside the digestive tract may also [...]