How does secondhand smoke harm human health?

The second-hand smoke exhaled by smokers is converted into more harmful substances through chemical reaction, and the people around them inhale it, which is more harmful to health, and it is easy to get lung adenocarcinoma after a long time, while smokers often get lung phosphorus cancer, and adenocarcinoma is more difficult to treat. Wish.

This applies not only to people who actually smoke, but also to non-smokers who are exposed to secondhand smoke. Exposure to secondhand smoke can lead to acute coronary heart disease, and even short-term exposure to secondhand smoke can increase the risk of coronary heart disease. The harmful substances in secondhand smoke can cause severe cardiovascular toxicity, impair the normal function of the heart, blood and vascular fronts, and increase the risk of cardiovascular events.

Exposure to secondhand smoke can also worsen the severity of heart attacks, increasing the risk of death and death.

Dr Neal L. Benofitz, Ph.D., Director of the Brandland Center for Secondhand Smoke at the UC Old Mountain Pilot Medical Research InstituteBenowitz says exposure to secondhand smoke allows you to inhale the same chemical composition as active smoking, and for a longer period of time than active smoking. Studies have shown that non-smokers exposed to secondhand smoke can find that platelets in the blood are activated within minutes, blood vessel function is impaired, and some effects can last for hours.

2. The harm of second-hand smoke to memory.

Terrence O'Neill and Tom Hefernam, members of the Drug and Alcohol Research Group at the University of Semibria, compared the memories of 27 smokers and two groups of non-smokers.

The first group of 27 non-smokers regularly inhaled secondhand smoke. They either live with smokers or spend a lot of time with smokers. For about four and a half years, an average of 25 hours per week were exposed to secondhand smoke.

The second group of 29 non-smokers was infrequent in second-hand smoke. The researchers tested three groups of volunteers with two methods, namely memories of future events and activities. One of the tests is to ask volunteers to remember a specific time before participating in an activity, and the other is to ask them to remember a future event or activity.

Nonsmokers who were regularly exposed to secondhand smoke scored 20 percent lower on memory tests than the other group of nonsmokers. In a second-degree smoke environment, smokers scored 30% lower than non-smokers who were less violent.

Exposure to secondhand smoke has many dangers to the body. First, secondhand smoke can lead to air pollution, which can lead to respiratory diseases such as asthma, bronchitis, and pneumonia. Secondly, secondhand smoke can lead to cardiovascular diseases such as heart disease, stroke and arteriosclerosis.

In addition, secondhand smoke can cause tumors such as lung, mouth, and stomach cancers. Finally, exposure to secondhand smoke can lead to weakened immunity, which is known to make people more susceptible to contracting state diseases. In conclusion, secondhand smoke has many harms on the body, and you should try to avoid secondhand smoke.

Second-hand smoke can not only damage children's respiratory system but also cause secretory otitis media, if you are in the environment of second-hand smoke for a long time, a large amount of nicotine contained in the smoke can enter the lungs with breathing, affecting the respiratory system, and at the same time flow to all parts of the body through blood exchange, causing secretory otitis media. In addition, long-term exposure to secondhand smoke can also easily affect heart function.

Second-hand smoke is the smoke released from the combustion end of tobacco products, also known as passive smoking, tobacco combustion will release a variety of harmful chemicals such as coke sock oil, nitrogen, nicotine, etc., including carcinogens, and long-term inhalation of second-hand smoke will also cause certain damage to the body. Because it mainly enters the body through breathing, it is more damaging to the respiratory system, and children can have symptoms such as cough and sputum. At the same time, after nicotine enters the blood of the beam belt, the small blood vessels spasm, resulting in the hardening of the arterioles supplying blood to the inner ear, resulting in insufficient blood supply to the inner ear, causing venous dilation and congestion of the mucosa of the middle ear, enhanced permeability of the blood vessel wall, and leakage in the tympanic cavity, long-term accumulation is easy to cause secretory otitis media, and children can have symptoms such as hearing loss, earache, tinnitus, and ear stuffiness.

In addition, due to the smoking of the surrounding population, exposure to second-hand smoke in childhood, nicotine metabolites will be detected in their blood samples, and harmful components in the body can cause changes in blood flow, blood vessels, blood pressure and heart rate, and then cause arterial vascular damage and affect heart function. Second-hand smoke is more harmful, in addition to causing certain harm to children, long-term second-hand smoke inhalation by adults may also affect the cardiovascular system, increase the incidence of coronary heart disease, hypertension and other diseases, as well as infertility, infertility and other reproductive system diseases. At the same time, smoking also has a greater impact on oneself, so it is recommended to quit smoking as soon as possible, which is beneficial to one's own health and the health of one's family.

How to dissuade others from smoking, no need to discourage him at all, just show him lung cancer and some disgusting **, people who have seen too much will naturally have the idea of quitting smoking, after all, they can only quit smoking if they have the idea of quitting smoking from the bottom of their hearts.

What is the harm of second-hand smoke to the human body?