The test, a collaboration by Just Park, measures how quickly participants can react to a Stop sign, then estimates their age based on the reaction time.
According to Just Park, the average reaction times vary significantly: 296 milliseconds for 18-year-olds, 387 for 30-year-olds, increasing to over 1,000 milliseconds for those 90.
The correlation between age and reaction time reflects physical changes within nerve fibers, confirming prior studies that show a slowdown of reflexes as one ages.
Shivali Best's result was a 304-millisecond reaction time, indicative of a 19-year-old, showcasing that individual results can defy age expectations.
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