https://en.wikibooks.org/wiki/Exercise_as_it_relates_to_Disease/Cardiorespiratory_Fitness%3A_is_it_the_answer_to_reduce_brain_atrophy_in_early-stage_Alzheimer%E2%80%99s_Disease%3F
Brown, Deborah; Spanjers, Katie; Atherton, Nicky; Lowe, Janet; Stonehewer, Louisa; Bridle, Chris; Sheehan, Bart; Lamb, Sarah E (2015). "Development of an