Respiratory physiology explains that smoking is harmful to health????

There is a layer of surfactant on the surface of the alveoli, which can reduce the alveolar surface tension, and the toxic substances in tobacco can reduce the surfactant and cause atelectasis.

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The dangers of smoking are well known. Smoking kills 2.5 million people worldwide every year, and tobacco is the number one killer of human beings. Consciously developing the habit of personal hygiene of not smoking is not only beneficial to health, but also a manifestation of noble public health ethics.

In the smoking room, especially in the environment where the doors and windows are closed in winter, the room is not only filled with carbon dioxide exhaled by the human body, but also carbon monoxide exhaled by the smoker, which will make people feel headache, fatigue, and work efficiency decreased, and more seriously, in the cold smoke exhaled by the smoker, the content of smoke tar and nicotine is 1 times more than the hot smoke inhaled by the smoker, 2 times more benzopyrene, 4 times more carbon monoxide, and 50 times more ammonia.

.There are data showing that long-term smokers have a 10-20 times higher incidence of lung cancer, 6-10 times higher incidence of laryngeal cancer, and 2-3 times higher incidence of coronary heart disease than non-smokers. The incidence of the circulatory system is 3 times higher, and the incidence of tracheitis is 2-8 times higher.

A survey of 1,000 households found that children under the age of 16 in smoking households suffered more respiratory diseases than non-smoking households. Children under 5 years of age in non-smoking households have respiratory symptoms, while smoking households have respiratory symptoms.

.Smoking poses a particular risk to women, who are using oral contraceptives to increase the risk of heart attacks and blood clots in the veins of the lower extremities; The fetus of pregnant women who smoke is prone to preterm birth and underweight, and the immune function of infancy and early childhood is weakened, and it is easy to get sick; According to statistics, the rate of teratogenicity in infants with passive smoking is significantly increased.

.Smoking is harmful to oneself and others, and one should consciously develop good hygiene habits of not smoking.

It can easily cause cough diseases such as laryngitis, tracheitis, and emphysema. When you smoke, smoke enters through the mouth, through the throat, trachea, bronchi, and into the bloodstream.

Smoking is harmful, not only harmful to human health, but also has a negative impact on society. As long as there are signs of life, any organized organism must breathe, exhale carbon dioxide from the body, inhale oxygen from the air, and metabolize it to maintain normal life activities. People who don't smoke can breathe in a lot of fresh air every day; Regular smokers, on the other hand, do not enjoy the blessings of nature and inhale not fresh air, but toxic gases polluted by smoke.

Hello, smoking has many harmful effects on your health. First of all, smoking can lead to lung diseases such as chronic bronchitis, lung cancer, etc. Secondly, smoking can lead to cardiovascular diseases, such as coronary heart disease, myocardial infarction, etc.

In addition, smoking can also cause respiratory diseases such as asthma, high bronchiectasis, etc. In addition, smoking can also lead to other diseases such as cirrhosis, kidney disease, etc.

In addition, smoking can also affect a person's appearance, such as wrinkles, bad breath, and yellowing of teeth. In addition, smoking can also affect a person's mental health, such as anxiety, depression, etc.

In short, smoking has many harmful effects on your health, and it is recommended that you do not smoke cigarettes to protect your health.

Smoking is harmful but not beneficial, not only affecting the health and life of smokers, but also polluting the air and endangering others.

1. It can mainly cause some lung diseases, cigarettes contain a variety of toxic chemicals, mainly tar, nicotine, carbon monoxide, dioxins, etc., which can damage the mouth, trachea and lungs, and can cause chronic bronchitis, emphysema, pulmonary interstitial fibrosis and other diseases.

2. Cause cardiovascular-related diseases, smoking can constrict coronary arteries and cause myocardial infarction. At the same time, it can cause increased heart rate, increased cardiac load, and lead to the occurrence of cardiovascular and cerebrovascular diseases.

3. Smoking can also cause cancer, the most common is lung cancer, bladder cancer, esophageal cancer, etc. Smoking can also cause osteoporosis, which can lead to early menopause. Men lose the ability to have sex and have children, and smoking in pregnant women can lead to premature birth of the fetus.

Smoking can also affect people's attention, affect people's intelligence and memory, and seriously affect the efficiency of work and study, so it is recommended to quit smoking as soon as possible.