SHR # 2496 :: The Compelling Link Between Physical Activity and the Body's Defense System - Dr. David Nieman DRPH - Today's interview discusses research discoveries within 4 areas of exercise immunology that have received the most attention from investigators: 1- acute and chronic effects of exercise on the immune system, 2- clinical benefits of the exercise–immune relationship, 3- nutritional influences on the immune response to exercise, and 4- the effect of exercise on immunosenescence.