How many times does the nares open and close?

The nares, or nostrils, open and close continuously as part of the respiratory cycle. They can open and close more frequently during activities such as breathing, sneezing, or sniffing. Additionally, the rhythmic pattern of opening and closing can vary based on individual physiology and environmental factors. Overall, there isn't a fixed number of times they open and close, as it depends on various activities and conditions.