DEAR DOCTOR K: I watched a documentary about President Kennedy around the 50th anniversary of his death last year. The program mentioned that he had something called Addison's disease. What is that?
DEAR READER: Addison's disease is a rare condition in which the adrenal glands do not function properly. The thumb-sized adrenal glands sit on top of the kidneys. When working properly, they produce several hormones. But with Addison's disease, the adrenal glands do not make enough hormones.