The eyes of a healthy human tend to blink about every 4 seconds. Either voluntarily or involuntarily our eyes blink around 10,000 times per day. The blinking serves a great purpose. It protects our eyes and helps spread tears across the eyeball. It also removes all the microscopic irritants on the surface of the eyes.
There are many myths regarding the blinking. Some people think that women blink a lot more than men do. This is in fact a common myth with no scientific proof to back it up. However, a recent study concluded that women who take birth control pills tend to blink 32% more often than women who do not. The research was held in the state of Oregon in which there were 59 male and 86 female participants. Out of the 86 women 44 were on the pill.
The researchers observed the blinking pattern of all the participants in the course of 5 minutes. Results showed that male and female participants blinked with a rate of approximately 15 blinks per minute. Surprisingly, women who were taking contraceptive pills blinked at a higher rate of 19.6 times per minute.
The researchers could not give an adequate explanation for this phenomenon. They could only assume that birth control pills somehow affected the control center for unconscious blinking located in the brain also known as the “caudate nucleus”. Experiments on animals have proven that increased levels of dopamine could influence the blinking center in the brain but yet again scientists do not know how or why exactly.