Reaction time

How quickly you react. Faster reaction times went with lower death rates.

About 1 minNothing; works best on a computer

How to do it

  1. Sit comfortably. On a computer, rest a finger on the space bar; on a phone, hold it steady.
  2. When the box turns green, tap it or press space as fast as you can.
  3. Wait for the change: tapping early doesn't count. Five tries make one result.

Your result

Nothing you enter leaves this page unless you save your result.

What the research found

In 54,019 UK Biobank adults followed for 5.8 years, each standard deviation faster on a reaction time test went with 8% lower risk of death, after allowing for fitness and other factors. Screens and devices add their own delay, so a result is best compared with your own earlier tries on the same device.

Studied in: 54,019 UK Biobank adults followed for about 6 years.

  • Yates T et al. Reaction time, cardiorespiratory fitness and mortality in UK Biobank: an observational study. Intelligence. 2018;66:79-83. Source

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