Inverse correlation of fluctuations of cerebral blood and water concentrations in humans Viola Borchardt, Vesa Korhonen, Heta Helakari, Maiken Nedergaard, Teemu Myllylä and Vesa Kiviniemi Eur. Phys. J. Plus, 136 5 (2021) 497 Published online: 05 May 2021 DOI: 10.1140/epjp/s13360-021-01480-2