In order to maintain an even temperament and concentration and to prevent winking that can lead to faulty aim, archers have about an hour of concentration training a day in which they stare at the clock, establishing a blinking frequency of exactly once every ten seconds.
射箭選手為求情緒穩定、意志專注，避免在發箭瞬間因眨眼使得瞄準點誤差，每天都得接受個把小時的集中力訓練﹘ ﹘目不轉睛地盯著時鐘，進行每十秒才能眨眼一次的頻率練習。