Check your reaction

[KARMAN]

Time
https://www.justpark.com/creative/reaction-time-test/

[chachee52]

So I did it 5 times. My first was the "slowest" and it said I was 33 (nope) after that I averaged 22.

[ToplessPony94]

First few times I did it I got "You have the reactions of a VERY OLD person". Then I thought about it and connected a hard-wired keyboard rather than using bluetooth and I got the reactions of a 32 year old. Don't use a wireless mouse or keyboard if you want an accurate result!