What's going on with sneezing?
Sneezing is a common physiological reaction in the human body, usually caused by irritation of the nasal cavity. Whether it's pollen, dust or viruses, this response can be triggered. As spring allergy season begins, sneezing has become a hot topic. This article will combine the hot content on the Internet in the past 10 days to analyze in detail the causes, mechanisms and countermeasures of sneezing.
1. Common causes of sneezing
There are many causes of sneezing, here are some common triggers:
| Reason type | Specific examples | Proportion (discussion popularity in the entire network) |
|---|---|---|
| allergens | Pollen, dust mites, pet dander | 45% |
| viral infection | cold, flu | 30% |
| environmental stimulation | smoke, perfume, cold air | 15% |
| Others | Bright light, spicy food | 10% |
2. The physiological mechanism of sneezing
Sneezing is a protective reflex, and its process can be divided into the following steps:
1.stimulus detection: A foreign object or irritant is detected at the trigeminal nerve endings in the nasal cavity.
2.signaling: Nerve signals are transmitted to the sneeze center of the brain (located in the medulla oblongata).
3.muscle response: The brain issues instructions, causing the lungs to take a deep breath, and then the diaphragm and intercostal muscles contract violently, forcing the air to be ejected at high speed.
This process, which usually takes a few seconds, is designed to remove harmful substances from the nasal cavity.
3. Recent hot discussions: sneezing and health
In the past 10 days, discussions about sneezing on the Internet have mainly focused on the following aspects:
| topic | Discuss the popularity index | Main point |
|---|---|---|
| Spring allergies and sneezing | 85 | If pollen allergy causes frequent sneezing, it is recommended to use antihistamines |
| Risk of spreading viruses through sneezing | 70 | Cover your body when sneezing to avoid droplet spread |
| Sneezing and COVID-19 | 60 | Sneezing is not a typical symptom of COVID-19, but you need to be alert to the accompanying fever |
| Folk remedies to stop sneezing | 40 | Compressing the philtrum or taking deep breaths may relieve sneezing |
4. How to relieve sneezing
For different causes of sneezing, the following measures can be taken:
1.sneezing caused by allergies: Avoid contact with allergens, use an air purifier, and take anti-allergy medications if necessary.
2.Sneezing caused by cold or flu: Get plenty of rest, replenish fluids, and seek medical attention if necessary.
3.sneezing caused by environmental irritation: Wear a mask to reduce exposure to smoke or cold air.
5. Facts about sneezing
1. When sneezing, the airflow speed can reach 160 kilometers per hour.
2. When you sneeze, you will temporarily close your eyes. This is a reflex action to prevent bacteria from entering the eyes.
3. Some people sneeze in the sun (called the "photosneeze reflex"), which is genetically related.
Summary
Sneezing is an important defense mechanism of the body, but it may be due to allergies, infections or other health problems. By understanding recent hot topics and scientific data, we can better respond to sneezing and stay healthy. If sneezing is frequent or accompanied by other symptoms, it is recommended to seek medical advice promptly to investigate the cause.
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