Assertion: caffeine's effect | /r/HasProperty | variable
Facets:
value: across consumers
type: OTHER
value: highly
type: DEGREE
Source sentences:
text: At normal doses, caffeine has variable effects on learning and memory, but it generally improves reaction time, wakefulness, concentration, and motor coordination.
text: At normal doses, caffeine has variable effects on learning and memory, but it generally improves reaction time, wakefulness, concentration, and motor coordination.
text: However, with caffeine, complications arise in the grading of the criteria as the effects of caffeine are highly variable across consumers and because the use of caffeine is socially acceptable.