How harmful is smoking How harmful is smoking

According to statistics, there are nearly 100 million smokers in China, that is to say, about a quarter of China's people smoke, and another statistic also shows that 1.4 million people die from smoking in China every year.

Well, I smoke myself, but I think it's pretty good! depressed].

Because tobacco contains nicotine (nicotine), it is highly toxic. It has been reported that nicotine in one cigarette can poison 10 mice, nicotine in 25 cigarettes can poison a cow, and 40 60 milligrams of nicotine can kill people. Nicotine damages brain cells, causing central nervous system symptoms in smokers; It causes increased blood pressure, rapid heartbeat, and even arrhythmia and heart disease; Causes stomach pain and other stomach problems; Damage to the bronchial mucosa, causing chronic bronchitis.

More seriously, tobacco dramatically increases the risk of cancer in the lungs, mouth, pharynx, larynx, esophagus, pancreas, bladder and renal pelvis, as well as cancers and leukemia in the nasal cavity, sinuses, stomach, liver, kidneys, cervix. Their danger is determined by how long and how much smokers smoke. For some smokers, alcoholic beverages can also exacerbate the health effects.

However, there is also evidence that smoking does not cause breast cancer and can reduce the frequency of cancer of the uterine wall.

There are no clear results showing the association between smoking and the risk of rectal, colon and prostate cancer.

Some of these types of cancer are more likely to be affected by objects in the smoker's field, smoker drinking, and smoker infection.

Smoking can be said to do more harm than good.

There are many harms of smoking, mainly in the following aspects:

1. The biggest harm of smoking is that the patient's lung function is damaged, and long-term smoking will cause the patient to develop emphysema and even lung cancer;

2. Long-term heavy smoking will also cause damage to the patient's heart function and cause cardiovascular and cerebrovascular diseases;

3. In addition, the probability of malignant tumors such as oral cancer, throat cancer and esophageal cancer in patients who smoke is greatly increased;

4. Smoking will also affect the patient's nerve function, affect the patient's brain function, and change the patient's sense of smell, taste and reproductive function;

5. The aging rate of people who smoke for a long time will also accelerate, and teeth and bones will be deformed, brittle and even fractured.

In fact, there are many harms of smoking, especially for people who smoke for a long time, the probability of suffering from various malignant tumors will increase. In addition, people who smoke secondhand smoke for a long time will also have a lot of harm, so try not to be in the same room as smokers.

1. The harm of smoking to the body is reversible.

2. Stop smoking for 20 minutes, and some indicators of the body, such as blood pressure and heart rate, will change accordingly.

3. Quitting smoking for about a year can reduce the risk of death in heart disease patients by 36 percent.

Fourth, it will take about 15 years for the body's various functions to gradually return to the level of non-smoking.

5. The earlier you quit smoking, the less likely you are to cause disease, disability and death.