The dangers of smoking! Be concise and to the point .

Nicotine is an unpleasant, bitter, colorless and transparent oily liquid, highly volatile, easily oxidized into dark gray in the air, can be quickly dissolved in water and alcohol, and is easily absorbed by the body through the bronchial mucosa of the mouth and nose. Nicotine stuck to the surface of ** can also be absorbed and infiltrated into the body. The nicotine in one cigarette can poison a guinea pig, and the nicotine in 20 cigarettes can poison a cow.

The lethal dose to humans is 50 70 milligrams, which is equivalent to the nicotine content of 20 25 cigarettes. If the nicotine of one cigar or three cigarettes is injected into a person's vein for 3 to 5 minutes, death can be achieved. Tobacco is not only harmful to higher animals, but also to lower animals, so it is also a major ingredient in agricultural pesticides.

Therefore, "Vipers do not bite smokers, because they smell the bitter smell of smoking, so they avoid flying away." In the same way, passive smokers also feel uncomfortable with the smell of smoke.

Death from acute poisoning caused by smoking has already occurred in China, and after smoking too much, he fell to the ground drunk and died of spitting yellow water. For this reason, Emperor Chongzhen once ordered a ban on smoking. It has also been reported abroad:

There was a young man in the USSR who smoked for the first time and died after smoking a large cigar. A healthy 40-year-old man in the UK who smoked for a long time was found to be engaged in a very important job; I smoked 14 cigars and 40 cigarettes in one night, felt uncomfortable in the morning, and died after being rescued by doctors. In France, a smoking contest was held at a club, and the winner died after smoking 60 paper cigarettes before he could receive the prize, and the other participants were in hospital in critical condition.

So why do some people smoke more than they get poisoned? There are many people who smoke more than a box of cigarettes (20 cigarettes) every day, and the nicotine content greatly exceeds the lethal amount of people, but there are very few deaths from acute poisoning, because some of the nicotine in tobacco is neutralized by the toxic formaldehyde in the smoke, and most of them are not continuous smoking, and these nicotine are intermittent and slow into the human body. In addition, 50% of the nicotine in paper cigarettes is diffused into the air with the smoke after ignition, 5% is thrown away with the cigarette butt, 25% is destroyed by combustion, and only 20% is absorbed by the body.

Nicotine is quickly detoxified in the body and excreted in the urine. In addition, long-term smokers have a tolerance to nicotine in the body, addiction, and make people addicted to smoking.

The harm of cigarettes to the human body is chronic, mainly because it has the greatest impact on the lungs, and is usually most obvious in middle-aged and elderly people

There is a certain amount of damage to the various functions of the human body, the biggest impact is your lungs and throat, I don't talk about the lungs, I know it, I have a deep feeling in the throat, I used to have a good voice, but now the voice has changed, I can't sing when I sing, and I can't roar.

Smoking can cause diseases such as lung disease, stomach disease, heart disease, and decreased immune function.

To put it simply, you can live for 60 years, but because you smoke, you can only live for more than 30 years.

Smoking reduces the ability of red blood cells to transport oxygen throughout the body.

There is a certain amount of damage to all functions of the human body.

1. Damage to the respiratory system: The toxic gases and particles in tar enter the lungs with smoking, damaging the lungs, not only increasing the risk of lung cancer, but also increasing the risk of pneumonia, bronchitis and emphysema. Studies have shown that smokers are susceptible to the common cold and flu.

2. Damage to the cardiovascular system: Smoking greatly increases the risk of cardiovascular diseases such as stroke, heart disease, aortic aneurysm, and sudden death. It also increases the risk of peripheral vascular disease (poor circulation) and arteriosclerosis, and decreases HDL levels.

Damage to the musculoskeletal system: Smoking has been linked to osteoporosis in women. Smoking makes the body thinner, and smoking makes a woman menopause premature, both of which contribute to osteoporosis.

Other effects: Smokers are at high risk of stomach ulcers. Whereas, smokers often suffer from cataracts and macular degeneration, which are the leading causes of blindness in older adults. Studies have shown that smokers are more likely to develop wrinkles than non-smokers, and wrinkles are deeper.

Smoking will not only cause damage to the airways, but also cause cardiovascular and cerebrovascular diseases, lung tumors, etc., and the decline in lung function in smokers is 20% to 30% faster.

What are the dangers of smoking? Star Awareness Project

The whole fibrosis of your lungs is like wood and is not active at all The second is cardiovascular, smoking can lead to cardiovascular blockage, and the third is that smoking will make you numb and dependent, and even many people will tremble, unable to control their body, and will cause stomach ulcers and infertility in the reproductive system.

Smoking will make ** dull and look yellow.

Female smoking** disease can be aggravated

Not only is it bad for your own health, but it may also affect your next generation in the future.