眨眼一般是指眼皮短暂的、无意识的闭合,是人体一个很平常、细小的生理性动作。除了入睡,人的眼睛经常、重复地眨着。有人作过研究,正常人一分钟眨10～20次,每次0.3～0.4秒。成人如3～5秒钟眨一次眼,一小时就近千次,随着年 Blink usually refers to the short eyelid, involuntary closure, is a very ordinary human body, small physiological movements. In addition to falling asleep, the eyes of people often, repeatedly winking. Someone made a study, normal people blink 10 to 20 times a minute, each 0.3 to 0.4 seconds. Adults, such as 3 to 5 seconds blink once the eye, an hour to nearly a thousand times, with the year