Hair acts as a filter that protects the airways and there is even data to indicate that it helps prevent asthma.
Throughout human evolution, we lost much of our body hair, but nasal hair continue to persist, especially as we age.
Many people turn to waxing to remove nasal and ear hair, but is this a wise choice? Evidence suggests that these hairs may have essential functions in addition to their aesthetic considerations.
A theory dating back to the 19th century postulates that nasal hair acts as a filter, retaining bacteria and particles before they enter the airways. An 1896 study published in The Lancet noted that although the inside of the nose is typically sterile, the nasal vibrissae and vestibules harbor bacteria. This supports the idea that nasal hair forms a protective barrier.
A 2011 study also found a potential link between nasal hair density and protection against asthma in patients with seasonal rhinitis. The study suggested that thicker nasal hair may reduce the risk of asthma by filtering out airborne allergens.
On the other hand, trimming nasal hair can improve airflowa clear advantage for breathing. However, better airflow could theoretically transport pathogens into the nasal passages, raising questions about the advantages and disadvantages of waxing. Despite this, nasal hairs are mostly effective against larger particles, making their role in viral filtering less certain, writes .
The risks of hair removal methods, such as tweezing or waxing, are more evident. Both practices can lead to complications like ingrown hairs and nasal abscesseswhich may require medical intervention.
Nasal hair also performs critical functions beyond filtration, as it helps retain moisture in the nasal passages, preventing dryness and ensuring that the air we breathe is adequately humidified for our respiratory system. Additionally, nasal hair acts as a sensory alert system, triggering sneezing to expel foreign particles.
Ultimately, trimming your nasal hair is a safer and more practical option than waxing or tweezing.
