Handling Editor: Toby Mundel D. D., Corbett, J., Costello, J. T., Williams, T. B., James, T. J., Shute, J. K., Alnajjar, M. G. A., Hudson, L. C., Marsh, P. A., Praskacova, V., Mayes, H. S., Tipton, M., Perissiou, M., McNarry, M. A., Mackintosh, K. A., Saynor, Z. L., & Shepherd, A. I. (2026). Effect of repeated hot water immersion on cognitive performance, cerebrovascular function, sleep and biomarkers of neurodegeneration in older adults. Experimental Physiology, 1–16.