> "An experiment began when a subject was shown the code “41234” on a screen and asked to type it out as many times as possible for 10 seconds and then take a 10 second break. Subjects were asked to repeat this cycle of alternating practice and rest sessions a total of 35 times."

This makes me suspicious of finding. Doesn't it decrease our focus/attention span with so many breaks? Isn't it equivalent of checking Twitter/FB every minute and not able to deliver anything?