Estimate how many times the average human blinks in a lifetime.

The average human bl inks about 1 0 - 1 2 times per minute , or approximately 6 0 - 7 2 times per hour . Assuming that a person sle eps for about 8 hours per night , they would bl ink approximately 5 0 0 - 6 4 0 times per night . Over the course of a lifetime , a person would bl ink approximately 3 0 0 , 0 0 0 - 3 6 0 , 0 0 0 times . However , this is just an estimate , as the number of bl inks per minute can vary depending on a variety of factors , such as age , health , and environmental conditions . </s>