Why are nose hairs so prosperous? What are the functions of nose hair, do you know?
Nose hair is a special type of hair in the body that is the first line of defense against respiratory diseases. It can block the dust and bacteria in the air from entering the nasal cavity first, and then generate clean air after being filtered by the lung respiratory system. However, some men's nose hair is always showing, which makes them very disturbed and affects their image. What is the reason for the nose hairs?
What is the reason for the exuberant nose hair?
1. Strong hormone secretion
Nose hair is a type of body hair. Like other hair, its growth is also affected by hormones, especially male hormones. The stronger the body hormones, the faster the growth rate of body hair. The reason for men's thick hair is mainly related to hormones. Due to the high secretion of hormones, it stimulates the secretion of androgens, which in turn stimulates hair growth. Excessive hormone secretion is closely related to genetics and diet. Long-term high animal protein diet can stimulate androgen secretion, such as animal offal, beef and various fats.
2. Excessive inhalation of harmful substances
Usually, men who smoke regularly have thicker nose hairs, which can first filter dust and larger harmful substances in the air into the inside of the nasal cavity. When smoking, the harmful gases in the smoke are discharged into the air through the nasal cavity and nasal hair from the inside, and the toxic substances continuously stimulate the peristalsis of the nasal hair follicles, thereby accelerating the rapid growth of the nasal hair follicles, which in turn leads to more vigorous growth of the nasal hair.
3. Frequent nose picking
During nose picking, sharp fingernails can damage the nasal mucosa, continuously irritate the hair follicles and damage the nose hair. Nosebleeds occur when the nasal mucosa is damaged. Due to repeated damage to the nasal mucosa, the nasal mucosa will fester, which not only stimulates the growth of nasal hair, but also increases the risk of cancer.
4. The method of shaving nose hair is incorrect
Intense removal of nose hair stimulates the follicles to secrete too much growth hormone, allowing the follicles to repair themselves. As they grow again, the nose hairs will grow longer. Therefore, we should master the correct method of shaving nose hair, use round-head scissors to cut off the exposed nose hair, but not cut it too short or pull it out, otherwise it will damage the nasal mucosa.
What does the nose hair do?
Nose hairs can block most of the fine particles, bacteria and all kinds of dust in the air, and evolve the air through the pulmonary respiratory system. Cilia in the nose also cause some bacteria to leave the stomach with the mucus, killing the bacteria with stomach acid;
Nose hair can maintain the temperature of the nasal mucosa, prevent cold air from invading the trachea, keep the nasal mucosa moist, avoid dry or atrophic rhinitis, and prevent epistaxis;
Nose hair can protect the olfactory nerve from damage, so that the nose can smell various odors, and transmit the fishy smell of food to the brain, thereby stimulating appetite;
When large foreign objects such as small insects enter the nasal cavity, the nose hair will not only block the nasal cavity, but also transmit information to the nervous system, causing sneezing and promoting the discharge of small insects.
Nose hair plays an important role in the body. It filters and cleans the inhaled air, avoiding the growth of dust and bacteria. If the nose hair is forcibly pulled out, it is equivalent to improving the defense function of the nose, allowing bacteria and dust to invade the lower respiratory tract, resulting in lower respiratory tract infection. In addition, forcibly plucking out the nose hair can damage the hair follicles, allowing bacteria to take advantage of it, leading to nasal boils. Therefore, the nose hair cannot be plucked, only trimmed. Trim protruding nose hair gently with clean, sterilized scissors, but only in a well-lit area.