Disadvantages of smoking

In today's life, it is quite common for people to smoke. However, smoking is harmful to health. People also know that smoking will seriously affect the health and life safety of smokers, and even cause various diseases. It will also pollute the air and harm others. Therefore, we must know the disadvantages of smoking clearly in order to prevent the harm caused by smoking.

We can see the disadvantages of smoking everywhere. For example, in our daily life, smoking can also cause a lot of harm to people's intelligence. Smoking can divert people's attention. Many people think that smoking can help us refresh ourselves, eliminate fatigue, and trigger people's thoughts and inspirations. In fact, there is no scientific reason for these. Experiments have shown that smoking has many disadvantages, which will harm people's intelligence and memory, thereby reducing the efficiency of work and study.

Lung disease: When cigarettes burn, they release 38 toxic chemicals, among which the main harmful ingredients are tar, carbon monoxide, nicotine, dioxins and irritating smoke. Tar is harmful to the mouth, throat, trachea and lungs. The tar in tobacco smoke is deposited on the lung hairs, destroying the function of the hairs, increasing sputum, causing chronic bronchial changes, and then tracheitis, emphysema, cor pulmonale and lung cancer will occur. According to statistics, the proportion of smokers who suffer from lung diseases after the age of 60 is 74%, while the proportion of non-smokers who suffer from lung diseases after the age of 60 is only 4%, which is a shocking number.

Cardiovascular disease: Carbon monoxide in cigarettes reduces the oxygen content in the blood, causing related diseases such as high blood pressure. Smoking causes coronary artery constriction, reducing or blocking the supply, causing myocardial infarction. Smoking can increase adrenaline, causing faster heartbeats, increased heart load, affecting blood circulation and leading to more than 20 diseases such as cardiovascular and cerebrovascular diseases, diabetes, sudden death syndrome, decreased respiratory function, and stroke.

There are many disadvantages of smoking, such as people are more likely to get pneumonia, bronchitis, severe asthma or other diseases. In daily life, if we have the habit of smoking, we must quit this bad habit, so as to avoid causing serious harm and regret it.