22 Aug 2018 --- When dehydration strikes, part of the brain can swell, neural signaling can intensify, and doing monotonous tasks can get harder, exercise physiologists at the Georgia Institute of Technology have found. With the help of brain scans and a simple, repetitive task to test responsiveness, the researchers studied volunteer subjects who sweated a lot and did not hydrate. The fluid loss led most of the subjects to make more goofs on the task, and areas of participants' brains showed conspicuous changes.
