Third hand smoke, second hand smoke, and first hand smoke What is the most harmful?

The dangers of first-hand cigarettes.

It causes cancer, shortens life expectancy, affects the health of women and children, etc.

The most serious is the increased incidence of lung cancer.

1. The main ingredient in tobacco is nicotine, which has strong central nervous toxicity and organ toxicity.

2. Smoking is an independent risk factor for lung cancer, and the probability of lung cancer in smokers is greatly increased.

3. Smoking is the most likely to cause respiratory diseases and increases the risk of cardiovascular diseases.

The dangers of secondhand smoke.

Long-term exposure to secondhand smoke can lead to lung cancer, coronary heart disease, cerebral dysphoria, stroke, breast cancer, sinus cancer and other diseases, so secondhand smoke is more harmful.

2. Secondhand smoke stays in the air longer than firsthand smoke.

3. Second-hand smoke is hidden, only less than 10% of the smoke and harmful substances produced by cigarettes are inhaled into the lungs of smokers, and the remaining smoke will be discharged into the air, and the surrounding people inhale relatively more harmful substances.

Dangers of thirdhand smoke.

Smoke attached to floors, sofas, walls, clothing.

It is more harmful to the human body than second-hand smoke.

1. Third-hand smoke will last for several months, possibly years, and it will be carcinogenic, cytotoxic and reproductive.

2. Infants have low immunity, respiratory rate becomes faster, hands and feet are more active, and third-hand smoke can damage the health of babies and respiratory tract.

3. It is easy to cause bronchitis, asthma, etc., damage to the nervous and circulatory systems, and in severe cases, it will also cause gene mutations.

The assistant concluded.

First-hand smoke, second-hand smoke, third-hand smoke.

1. Do not be in the same environment with smokers, pay attention to open windows for ventilation, and if there is second-hand smoke, try to stay in the second-hand smoke environment.

2. According to professional research, even if parents go outdoors to smoke, the concentration of harmful substances in the baby's body is still 7 times that of the parent who does not smoke, so the easiest thing is not to smoke and reduce the harm caused by smoking to the family.

3. If there are items that have been "poisoned" by third-hand smoke, you can thoroughly clean and replace the objects contaminated by smoke clouds, and clean the ashtray in time at ordinary times.

Secondhand smoke is very harmful. 1. Inhaling second-hand smoke and third-hand smoke will cause lung damage.

2. People who often smoke secondhand smoke and third-hand smoke are very likely to suffer from bronchitis in autumn.

3. Although children do not smoke, second-hand smoke around them is a major factor in inducing lung diseases.

4. Pregnant women should not inhale second-hand smoke, which can easily lead to fetal malformations and even miscarriage. So, be sure to stay away from secondhand smoke.

There is no greater harm between secondhand smoke and thirdhand smoke, but the people they harm are different. The main hazards of second-hand smoke are women of childbearing age and children, and more than half of women of childbearing age in China are exposed to second-hand smoke; The main harm groups of thirdhand smoke are infants and children, who have poor self-protection ability and have more opportunities to inhale thirdhand smoke.

Second-hand smoke refers to the mainstream smoke exhaled by smokers, and the measured smoke directly emitted by tobacco combustion is inhaled by the people around them, and the content of toxic substances in second-hand smoke is much higher than that of mainstream smoke, containing 2 times more nicotine, 3 times more tar and 5 times more carbon monoxide.

Third-hand smoke refers to the pollutants that remain in the environment after the smoke has been extinguished. Cigarettes often release potentially toxic compounds when burned, and they can also adhere to the surfaces of various objects such as hair, curtains, clothing, food, walls, and ceilings.

To avoid third-hand smoke, wash sheets, covers, carpets, sofa covers and curtains regularly, replace them in a timely manner, disinfect them if possible, or buy leather sofas and use blinds. Before Zen.

Inhale.

Second- and third-hand smoke can cause asthma, lung cancer, high blood pressure and heart disease, just like direct smoking.

Studies have shown that long-term exposure.

Second- and third-hand smoke can change the gene expression of nasal epithelial cells, bringing irreversible damage to cells.

into the body.

Second- and third-hand smoke can change the biological pathways related to oxidative stress, causing damage to cellular DNA, which increases the risk of cancer over time. Screaming feast.

The study also found that exposure within a short period of time.

Second- and third-hand smoke can affect mitochondrial activity and shorten human lifespan.