What happens if you smoke secondhand smoke every day? What diseases can it cause?

Secondhand smoke is mainly composed of two types of smoke: the smoke exhaled by smokers and the smoke when cigarettes burn. People who frequently inhale secondhand smoke are more likely to suffer from lung cancer, brain disease, and stroke. Therefore, if people frequently inhale secondhand smoke in their lives, the harm it brings cannot be ignored.

Secondhand smoke is actually composed of two types of smoke: one is the smoke exhaled by smokers, called mainstream smoke; the other is the smoke produced when cigarettes burn, called diversion smoke. No matter what kind of smoke a non-smoker inhales, it is considered secondhand smoke.

The harm of secondhand smoke as reported by science:

1. 25% of lung cancer is related to secondhand smoke;

2. "Secondhand smoke" directly damages children's lungs and brains;

Studies have confirmed that pregnant women who smoke more than 10 cigarettes a day during pregnancy, including passive smoking, have a 100% increased risk of their children developing acute lymphoblastic leukemia. Children, due to their high metabolism and imperfect immune function, are more vulnerable to the harm of passively accepting "secondhand smoke".

The most direct damage of second-hand smoke to children is to the lungs and brain. Children's brain cells have a high metabolism and require a large amount of oxygen, but they cannot get enough oxygen in the smoke, which has a greater impact on their brain cells; children's bronchial tubes are relatively straight, and the toxins in the smoke can easily enter the alveoli directly and accumulate in the alveoli. If children are exposed to cigarette smoke for a long time every day, their risk of developing lung cancer in adulthood is three times that of children who are not exposed to passive smoking.

3. Women who inhale secondhand smoke are more likely to suffer from stroke;

Women whose husbands are smokers are the first to suffer and are the biggest victims of "second-hand smoke". A survey once showed that if the husband smokes less than 10 cigarettes a day, his wife's risk of stroke increases by 28%. If the husband smokes 10 to 20 cigarettes a day, his wife's risk of stroke increases by 32%. If the husband smokes more than 20 cigarettes a day, his wife's risk of stroke increases by as much as 62%.

4. The latest research found that in addition to lung cancer, which is most closely related to smoking and is well known to the public, smoking can also affect the occurrence of laryngeal cancer, nasopharyngeal cancer, oral cancer, tongue cancer, esophageal cancer, gastric cancer, pancreatic cancer, bladder cancer, kidney cancer and cervical cancer.