The harm of "second-hand smoke" and "third-hand smoke" to teenagers

The harm of "second-hand smoke" and "third-hand smoke" to teenagers

In life, "second-hand smoke" and "third-hand smoke" are equally harmful to teenagers.

"Secondhand smoke" refers to the smoke emitted during the burning of tobacco, including the smoke exhaled by smokers and the smoke emitted by the burning of tobacco itself. The composition of "secondhand smoke" is no different from the mainstream smoke inhaled by smokers. "Thirdhand smoke" refers to the smoke that remains on the surface of clothing, walls, carpets, curtains and other objects. These tobacco residues can remain on the attached objects for days, weeks, or even months, and the harm cannot be ignored.