If you are waiting for a friend a colleague or even a doctor s appointment how long do you think it takes before you check your phone? Not more than a minute. And if you are a man it could be even shorter - just 21 seconds says a study.In the study participants left in a waiting room on their own for 10 minutes lasted an average of just 44 seconds before touching their smartphones.Men could not even manage half of this time waiting an average of only 21 seconds compared to women at 57 seconds.The study was conducted by