How fast is your reaction time ... to your hand muscles to react in time to catch a falling object? ScienceU campers find out using the "ruler test". If you know the rate of falling objects ...

Hillarys has developed the reaction time test, which reveals whether you’re as alert as an athlete, a well-rested person, a drunk person or an elderly person. Lucy Askew, a spokesperson for ...

We tested your reaction time last week, and most of you did much better than your humble narrator. Or at least that’s what you reported. We have the official results of the test, with a whopping ...

But when it comes to your reflexes, just how 'young' are you? A fiendishly difficult reaction time test has been developed, which claims to reveal exactly how old your reactions are.

Your age is predicted based on the average age of people with your reaction time. Take the test and let us know how you did in the comments. Why do we yawn? Dr. Nick explains all ...