◎ Science and Technology Daily Comprehensive Report by Li Xiaohang
Today, topic“Couple suffer from cancer due to husband smoking”
On the hot search
Causing heated discussion among netizens
⬇⬇⬇
A woman in Henan suffers from chronic smoking
husband’s secondhand smoke , thirdhand smoke developed lung cancer
and his husband was diagnosed with lung cancer a few years ago due to long-term smoking
a few years ago
Nowadays, many people are aware of
the dangers of “first-hand smoke” and “second-hand smoke”
smoking At times, I will deliberately avoid children and pregnant women.
When I am addicted to smoking at home, I go to the balcony and the toilet to smoke
But do you know?
As long as you are still smoking
Another, more terrifying form of pollution-“third-hand smoke”
will quietly poison the body of your family
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Henan Cancer Hospital Chief Physician Wang Qimingintroduced Compared with secondhand smokeThirdhand smoke is more harmfulpersistent
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Source: Visual China
“Three Hands” What is “smoke”?
Thirdhand smoke is formed by the residual smoke and particulate matter of secondhand smoke scattered on the surface of objects or dust. Re-dispersed into the air by painting or re-carpeting, inhaled or absorbed through the skin into the body.
The nicotine deposited on the surface of objects or air dust reacts with the main indoor pollutant nitrous acid to form teratogenic and carcinogenic substances.
These residues will remain for a few days or even half a year, and dissolve into the air , passively inhaled by non-smokers.
THS impairs gene expression, induces cancer, and damages the lungs
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JAMA Network Open, a subsidiary of the Journal of the American Medical Association, published a study by scientists at the University of California, Riverside. Randomized clinical trials have shown that the harm of thirdhand smoke cannot be ignored.It alters the gene expression of human nasal epithelial cells, thereby causing damage to these cells.
Studies show that in healthy non-smokers, inhaling thirdhand smoke for just three hours significantly changes gene expression in nasal epithelial cells . Inhaled thirdhand smoke alters biological pathways associated with oxidative stress, leading to DNA damage, which in the long term may lead to cancer.
In addition, the researchers found that brief exposure to thirdhand smoke had an effect on mitochondrial activity. Mitochondria are like the powerhouses of human cells, and if left untouched in this way, cells will die.
Source:Visual China /span>
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Thirdhand smoke contains 11 highly carcinogenic compounds such as hydrocyanic acid, butane, toluene, arsenic, lead, carbon monoxide, and polonium 2-1 0.
In addition, the nicotine in third-hand smoke reacts with nitrous acid, a common air pollutant, to form a powerful carcinogen.
Once these carcinogens enter the human body, they will enter the cells, and some compounds will react with nucleic acids in the nucleus, causing gene strand breaks or base oxidation, opening the door to cancer.
For adults, because of their strong resistance, the harm of third-hand smoke is not obvious in a short period of time. But If you stay in the environment of third-hand smoke for a long time, the carcinogens contained in it will linger in the human lungs.When a person is overtired, malnourished or When the body’s immunity rapidly declines, it will cause damage to the lungs.
Thirdhand smoke is most harmful to infants and young children
The main victims of thirdhand smoke are infants and young children, because thirdhand smoke adheres to the surrounding environment (such as toys, clothes, furniture) for a longer time.Long, it contains heavy metals, carcinogens, and even radioactive substances, which will make it easier for infants and young children to come into contact with them when they crawl and play. And children habitually eat their hands or put objects in their mouths, and the damage will be greater and longer lasting. Possible to cause cognitive and neurodevelopmental impairments and to develop muscle and skeletal retardation symptoms similar to active and secondhand smokers.
How to reduce the harm of “third-hand smoke”?
The American Academy of Pediatrics (AAP) recommends that no child be exposed to cigarette smoke. On how to avoid the harm of third-hand smoke, the society gave the following suggestions.
Do not smoke in your home or car.
Do not let smokers near you, your children or pets .
E-cigarettes also produce third-hand cigarettes and therefore should be treated like regular cigarettes.
Protect children from three The most thorough way to harm hand smoke is to quit smoking.
In addition, change sheets and quilts frequently, wash curtains, and wipe furniture regularly; change clothes immediately after smoking, rinse mouth, and preferably wash Take a bath; often clean ashtrays and other smoking utensils, you can put some tea residues, orange peels, etc. to absorb third-hand smoke, which can also relatively reduce the harm of some third-hand smoke.
>Source:Visual China
So far
There is no complete or good way to remove “third-hand smoke”
For the people around you
And for yourself
Keep Tobacco
Healthy Living
Source: Science and Technology DayReporting Comprehensive LifeTimes, Voice of China, Run Run Shaw Hospitaletc.
Editor: Li Xiaohang (internship)
Review: Julie
Final review : Wang Yu