What are the main causes of colds, and what are the main causes of colds?

There are many reasons for frequent colds, which may be caused by poor lifestyle habits, poor immunity, allergic rhinitis, anemia, vitamin deficiency and other conditions. Causes of frequent colds:

First. Bad living habits: Poor living habits, such as long-term Internet access, frequent staying up late, lack of exercise, poor eating habits, and frequent drinking, can easily cause the invasion of bacteria, leading to frequent colds and illnesses.

Second. Poor immunity: colds are mostly caused by viral infections in the natural environment, and people with normal immunity will not catch colds often because of contact with viruses, and people with poor immunity will have reduced human barrier function, and viruses are easy to invade the body, causing cold symptoms.

Third. Allergic rhinitis: Patients with allergic rhinitis are prone to sneezing, runny nose and other symptoms, and will be mistakenly thought to be caused by a cold, and should have allergic rhinitis.

Fourth. Anemia and vitamin deficiencies: People with anemia and vitamin deficiencies are more likely to be infected with pathogens and cause colds and other diseases due to malnutrition and reduced ability to resist viruses.

A cold is a very common upper respiratory tract infection that is mainly caused by a cold or viral infection. Some patients may be physically weak due to lack of physical activity, while others may have decreased resistance due to staying up late. Such a patient may catch a cold because of the air conditioning and rain.

In addition, these patients may have a viral infection, which can lead to viral infection. Patients with colds may have nasal congestion, sneezing, runny nose, fever, cough and headache, and patients should properly strengthen nutrition to increase resistance and promote cold recovery.

1. Colds are caused by colds, because people's body temperature is in a constant state, and when the temperature rises, you need to reduce your clothing, and you need to add clothes when the temperature drops. If you don't pay attention to cold protection and warmth in the autumn and winter when the temperature difference is large, it is easy to keep the body in a cold state, thereby reducing the immune system, and you will catch a cold after being cold.

2. The cold is caused by low resistance, and some elderly and children's resistance is relatively weak, so the cold virus takes advantage of the weakness and breaks through the body's defense system, resulting in people suffering from colds. In order to prevent colds, it is necessary to improve one's own immunity and regulate it through exercise or diet.

What do I need to pay attention to after a cold?

1. During a cold, you need to drink more water and increase your water intake, which can help replenish body fluids. At the same time, keep your throat moist. Because some cold patients will have throat inflammation, such as sore throat, pharyngitis, etc., they need to drink plenty of water to improve.

2. During the cold period, patients need to rest more and avoid overwork. If the cold is more severe, it is best to take leave to recuperate at home and ensure adequate sleep, which can improve the body's immunity and improve the cold condition faster. During bed rest, eat fresh vegetables and fruits and supplement vitamins.

3. If cold patients feel cold and have chills, they can drink ginger brown sugar water to help replenish energy. In addition, ginger has the effect of repelling cold, and for early or mild colds, ginger water can be used to help improve the condition.

In general, there are three reasons for colds, cold, heat, and viruses.

A cold is a very common upper respiratory tract infection, and the main cause of the cold is a cold or a viral infection.

Some patients may have a weak physique due to the lack of physical exercise, and in addition, patients often stay up late, which may lead to a decrease in resistance, such patients may have a cold due to air conditioning, rain and other reasons, and thus may have a cold. In addition, such patients may also develop viral infections, which can lead to viral infections.

Patients with colds may experience nasal congestion, sneezing, runny nose, fever, cough, and headache. In this case, it is necessary to apply anti-cold drugs under the guidance of a doctor** to promote the development of colds**. In addition, you should pay attention to rest, avoid fatigue, pay attention to cold and keep warm, and avoid cold.

In addition, it is necessary to properly strengthen nutrition and increase resistance to promote the recovery of colds.

Colds are non-communicable diseases, seasonal is not obvious, patients generally do not have fever or moderate fever, no chills, few or no systemic symptoms, the course of the disease is 1 3 days, and there are few complications such as otitis media, pneumonia and encephalitis. Epidemic ** is a Class C infectious disease with obvious seasonality.

Colds are almost always caused by respiratory viral infections, including influenza viruses, respiratory syncytial virus, adenovirus, rhinovirus, and parainfluenza viruses, and acute upper respiratory tract infections are the counterpart of acute bronchitis and community-acquired pneumonia. Acute upper respiratory tract infections in infants and young children are caused by a variety of causes, mainly infections, bacterial infections, and very rarely pathogenic microorganisms such as mycoplasma or fungi.

In addition, for some middle-aged and elderly people, especially those with some underlying diseases, such as diabetes, are also prone to upper respiratory tract infection, so for upper respiratory tract infection, in addition to active anti-infection, we should pay attention to improving the foundation, adjust the patient's physical condition, and improve the ability to resist diseases.

Colds are also upper respiratory tract infections, inflammation of the nose and throat, and 70% and 80% of the common pathogens of upper respiratory tract infections are viruses, mainly including parainfluenza virus, respiratory syncytial virus, adenovirus, rhinovirus, echovirus, coxsackievirus, measles virus and rubella virus.

Common factors that cause colds in life: rain, cold, sudden climate change, excessive fatigue; Anemia, vitamin A, D deficiency, etc.;

The elderly, the frail, the infant, etc., are immunocompromised; Patients with chronic respiratory diseases.

The main reason is low immunity in the body. Exercises such as swimming, skipping rope, playing table tennis, singing, etc. should be strengthened.

The main cause of colds is a viral infection:

a) Caused by viruses.

Viruses account for about 70% to 80% of acute upper respiratory tract infections. The main influenza viruses (A, B, C), parainfluenza virus, respiratory syncytial virus, adenovirus, rhinovirus, echovirus, coxsackievirus, measles virus, rubella virus.

b) Bacterial infection.

Bacterial infections can occur directly or after viral infections, with hemolytic streptococcus being the most common, followed by Haemophilus influenzae, pneumococcus and staphylococci. Gram-negative bacilli are occasionally seen. The main manifestations of mindfulness infection are rhinitis, pharyngitis, or tonsillitis.

3) External triggers.

When there are predisposing factors such as cold, rain, excessive fatigue, etc., which reduce the local defense function of the whole body or respiratory tract, the viruses or bacteria that already exist in the upper respiratory tract or invade from the outside world can multiply rapidly, causing morbidity, especially for the elderly and young who are weak or have chronic respiratory diseases such as paranasal sinusitis and tonsillitis.

A cold generally refers to an acute upper respiratory tract infection, and its main causative agent is a virus, and a few are bacteria.

Its occurrence, regardless of age, gender, region, generally low immunity, it is easy to catch a cold, usually the disease is relatively mild, the course of the disease is relatively short, it causes the common liquid vertical of the cold is mainly due to the transmission route, buried tung and population susceptibility, generally is a decrease in immunity.

The second is that rain, cold, climate mutation or overwork can reduce the local defense mechanism of the human respiratory tract, and the pre-existing viruses or bacteria on the respiratory tract can multiply rapidly.

There is also direct mutual transmission, such as sneezing, air or contaminated hands from patients with upper respiratory tract infections who have come into contact with a cold.

Patients with chronic respiratory diseases, such as sinusitis, tonsillitis, acute tracheobronchitis or CUPD, are more likely to have colds. Big trouble.

Therefore, if you have a cold, you must strengthen your resistance and take good protective measures. Secondly, try not to go to crowded places as much as possible, because it is not clear who has a cold in this kind of place, and it is easier to be infected through this respiratory infection.

Colds are one of the most common illnesses in humans and are caused by cold virus infections. After the cold virus invades the body, the body can produce antibodies to fight the cold virus. But why do people still get colds repeatedly?

1) Cold virus antibodies cannot be retained in the human body for a long time. Common cold virus antibodies generally only last for about 1 month, and epidemic virus antibodies can be maintained for 8 to 12 months, so immunity after a cold can generally be maintained for 1 month, and epidemic viruses can be maintained for 8 12 months. (2) The immune effect of antibodies is specific.

Although the human body can produce antibodies and obtain immunity after a cold, this immunity is specific and only has an immune effect on the pathogens that cause the human body to produce this immunity, and has no immune effect on other pathogens, so it is also called specific immunity. (3) There are many types of viruses that can cause colds. According to research, more than 90% of colds are caused by viruses, and more than 200 types of viruses have been found to cause colds

Influenza virus, parainfluenza virus, rhinovirus, syncytial virus, coronavirus, adenovirus, and enterovirus, among others. Soon after being infected with one virus, it is possible for the human body to be infected by another virus, so a person may suffer from repeated colds in a short period of time. Autumn and winter alternate, the temperature rises and falls, and it is the season of frequent colds.

At this time, some people often catch a cold with the change of climate, and the previous cold has not healed, and the next cold starts again, itching and sore throat all day long, the whole body is tight, hot and cold, and the mind is not clear. Generally speaking, people with sufficient health motivation are not easy to catch colds, even if they have a cold, they are also relatively mild, and they are faster. People with insufficient health motivation and low immunity are susceptible to colds; After a cold, the symptoms are worse than others, and the fever does not go away; Frequent colds are easy to cause complications such as pneumonia, myocarditis, and acute nephritis.

Therefore, at the turn of autumn and winter, people who are prone to colds should pay more attention to preventing colds. There are many ways to prevent colds, but the key to preventing and treating colds is to improve the driving force of health, enhance the local immune function of the whole body, respiratory tract, trachea and bronchi, and resist various viruses or bacteria that invade from the respiratory tract.