Obesity shaped Anna Olson's earliest notions of herself, when she saw a photo and thought, "Oh, I look different than the other kids." Olson's obesity began in toddlerhood, ran in her family, and left ...

Scientists are trying a revolutionary new approach to treat rheumatoid arthritis, multiple sclerosis, lupus and other devastating autoimmune diseases — by reprogramming patients’ out-of-whack immune ...