How many times does the average human blink in a lifetime? Try to explain your answer. Your explanation should take the reader through your reasoning step-by-step.

The average human blink s approximately 1 0 - 1 5 times per second . To calculate how many times a person blink s in a lifetime , we need to multip ly this rate by the average lif es pan . \n \n Let ' s assume an average lif es pan of 7 2 years . To calculate the total number of blink s in a lifetime , we multip ly the average number of blink s per second by the average lif es pan in seconds : \n \n Total blink s = Bl inks per second x L if es pan in seconds \n Total blink s = 1 0 - 1 5 x 3 1 , 5 3 6 , 0 0 0 \n Total blink s = 3 1 5 , 3 6 0 , 0 0 0 - 4 7 2 , 9 4 0 , 0 0 0 \n \n So , the average human blink s between 3 1 5 , 3 6 0 , 0 0 0 and 4 7 2 , 9 4 0 , 0 0 0 times in a lifetime . However , it ' s important to note that this is an estimate and the actual number of blink s can vary depending on factors such as age , health , and individual habits . </s>