There are many different toxic substances in cigarette smoke, among which is a class of compounds known informally as tar, and formally as polycyclic aromatic hydrocarbons. This material has the capacity to induce cancer. It has some deleterious reaction with the nucleic acid in cells.
No, smoking can not cause "Brian" cancer.
SMOKING
The major cause of lung cancer is smoking. Cigarette smoke contains harmful chemicals that damage lung cells and cause genetic mutations over time. The longer and more a person smokes, the higher the risk. Secondhand smoke is also a significant risk factor, even for non-smokers.
SMOKING
smoking
Smoking cause cancer which leads to hematomisis
Smoking can cause emphysema, heart disease, and cancer.
probably smoking
When you smoke it can cause lung cancer.
All cancers!
SMOKING
Any smoking you do whatsoever has the potential to cause cancer, smoking for longer just increases your risk of it.