raven smoking a cigarette Crow smoking a cigarette by kamiesque on DeviantArt Smoking crow

Often times, the DNA mutations can generate instructions leading to uncontrolled cell growth and eventual tumor formation

Thirdhand smoke is the residue left on surfaces after smoking

Research shows you have a much greater chance of succeeding through a formal tobacco cessation program that combines behavior modification, education and quit aids

Cigar smoke contains higher levels of cancer-causing agents (carbon monoxide, hydrogen cyanide, benzene, arsenic, cadmium, and nitrosamines), tar, and toxins than cigarette smoke

Sanchez-Romero et al

But there are a lot of misconceptions when it comes to inhaling cigars, including that inhaling cigars is less harmful than cigarettes