Nose hair grows in our noses. This kind of nose hair can not only block most of the dust in the outside air for us, but also filter out some dirty dust when we inhale. It can also help us breathe oxygen in winter. We know that winter is particularly cold. When you inhale, you inhale through your nose. Because of the temperature in winter, this gas is very cold. Nose hair can help people warm this cold gas first, and then it enters our respiratory tract and our lungs.
Human nose hair conforms to the theory of biological evolution. I don't know if you have read Darwin's Origin of Species and how much you know about Darwin's theory of biological evolution. From this book, we can know that all creatures in nature are always in an evolutionary process, but this evolutionary process takes a long time, which takes thousands of years, tens of thousands of years and hundreds of millions of years. The evolution of these species, on the one hand, is to better adapt to the living environment and not be abandoned by nature, on the other hand, it is also for the development of this species, and all the evolution is developing in a better direction. People have nose hair for the same reason. Do you think there is something in people that is meaningless and unnecessary? I think the answer is no, everything in a person has a role.
Many people will find it ugly to have nose hair, and even pull it out directly by hand. Bian Xiao here advises everyone not to do so. You can choose to trim the nose hair, but you must not pull it out directly.