Brain Development We haven't found the fountain of youth but swimming is a close runner up. Water activity and exercise can indeed lessen the repercussions of aging. In addition, studies have shown that swimming could improve your overall brain health. The production of brain-derived neurotrophic factor (BDNF), a compound that helps repair brain cells and supports the growth of new ones, is a latent benefit of swimming that most do not know about. One benefit of producing thi