In fact, performance deficits during exercise can be seen with as little as a 3 % decrease in hydration. (onnit.com)
Researchers say this is particularly important given that the mean age of adolescents surveyed was 13 and initiation of marijuana use during early adolescence is associated with poor school performance, neuropsychological performance deficits and further use of other illicit drugs, such as heroin and cocaine. (sciencedaily.com)
BACKGROUND Neurocognitive performance deficits have been observed in mood disorder patients and their unaffected relatives and may therefore qualify as endophenotypes. (semanticscholar.org)