Women blink 19 times per minute, compared to 11 for men.
The study, conducted by the Functional Anatomy Research Center in Milan, Italy, used optoelectronic motion analysers to monitor spontaneous eyelid movements. It involved 13 men, 12 women aged between 20 to 30 years, and 10 men and nine women aged over 50. It concluded that women blinked 19 times per minute versus 11 times per minute for men.