
Volunteers were given either a 200 milligram (mg) caffeine pill -- equivalent to one cup of strong coffee -- or a placebo. Caffeine improved convergent thinking but had no real impact on divergent thinking.
from WebMD Health https://ift.tt/2Iu0meW
Volunteers were given either a 200 milligram (mg) caffeine pill -- equivalent to one cup of strong coffee -- or a placebo. Caffeine improved convergent thinking but had no real impact on divergent thinking.
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