Interesting work from 2016 which is supported in other papers:
Effects of Dehydration and Rehydration on Cognitive Performance and Mood among Male College Students in Cangzhou, China: A Self-Controlled Trial (2019) - https://pmc.ncbi.nlm.nih.gov/articles/PMC6603652/
Cognitive Performance Before and Following Habituation to Exercise-Induced Hypohydration of 2 and 4% Body Mass in Physically Active Individuals (2022) - https://pmc.ncbi.nlm.nih.gov/articles/PMC8912814/
Interesting work from 2016 which is supported in other papers:
Effects of Dehydration and Rehydration on Cognitive Performance and Mood among Male College Students in Cangzhou, China: A Self-Controlled Trial (2019) - https://pmc.ncbi.nlm.nih.gov/articles/PMC6603652/
Cognitive Performance Before and Following Habituation to Exercise-Induced Hypohydration of 2 and 4% Body Mass in Physically Active Individuals (2022) - https://pmc.ncbi.nlm.nih.gov/articles/PMC8912814/
Effects of hypohydration and fluid balance in athletes' cognitive performance: a systematic review (2022) - https://pmc.ncbi.nlm.nih.gov/articles/PMC9382508/
First read hyperhydration and thought that to be completely plausible as bladder pressure is quite distracting.