Saturation of tobacco smoking models and risk of alcohol and tobacco use among adolescents
In behind-the-scenes footage of Bella Hadid's new Chrome Hearts campaign, the model takes a drag of a cigarette with long, manicured fingers, before throwing a sultry glance at the camera with a look that seems to say: I 'm sexy and I'm smoking. But let's not mince words: we all know smoking cigarettes will kill you. It's toxic to you , your loved ones , and your pets. It's socially and fiscally irresponsible. And we haven't even started talking about the environmental impact of Big Tobacco.
We derive and analyze a mathematical model of smoking in which the population is divided into four classes: potential smokers, smokers, temporary quitters, and permanent quitters. In this model we study the effect of smokers on temporary quitters. Two equilibria of the model are found: one of them is the smoking-free equilibrium and the other corresponds to the presence of smoking. We examine the local and global stability of both equilibria and we support our results by using numerical simulations.
A finite number of oocytes are established within the mammalian ovary prior to birth to form a precious ovarian reserve. Damage to this limited pool of gametes by environmental factors such as cigarette smoke and its constituents therefore represents a significant risk to a woman's reproductive capacity. Although evidence from human studies to date implicates a detrimental effect of cigarette smoking on female fertility, these retrospective studies are limited and present conflicting results.