Some people can treat their ADHD using stimulants, and your reaction time tends to be better in that circumstance (citation needed though, I guess). IME, too m

Some people can treat their ADHD using stimulants, and your reaction time tends to be better in that circumstance (citation needed though, I guess). IME, too much stimulants causes hyperreflexia, but I'm not sure if it's because of a decreased reaction time.