why is cigarette smoke toxic Smoking harms not just your physical health, but your mental health too Mayo Clinic Q and A:

This was at a time when filters where being added to cigarettes as scientists started to link smoking to lung cancer

The limitations of the current research, such as the investigation of the incomplete recovery of TER in the presence of surfactant in samples post-CS exposure, also needs to be addressed in future research targeting the need of additional components and contributions to fully protect barrier integrity

You can also use it to promote one chosen brand as well

NOW, (2024 JANUARY 04)

Those ultrafine particles are the most dangerous to inhale, since they can not only lodge in the lungs, but travel through the bloodstream, causing cardiovascular problems including heart attack, stroke, congestive heart failure, and premature births for pregnant women.