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Rates
Measurements that denote the frequency or occurrence of an event, particularly per unit of time.
1990s
The decade spanning from January 1, 1990, to December 31, 1999, marked by significant cultural, political, and technological changes worldwide.
Reaction Time
The amount of time it takes to respond to a stimulus.
Age-Related Decline
The gradual loss of cognitive, physical, or biological functions associated with or accelerated by aging.
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