Why test your reaction time?
It can be hard to tell exactly how tired you really are. You might feel "fine," but your nervous system could be operating at a significant deficit. A reaction time test bypasses your subjective feeling of alertness and measures your raw cognitive processing speed.
Studies show that after just 24 hours without sleep, or several nights of restricted sleep, your reaction time can degrade to a level equivalent to a blood alcohol content (BAC) of 0.10% — which is legally impaired.
If your score indicates you are sleep-deprived, the best fix is to calculate an optimal bedtime for tonight to start paying back your sleep debt.
