News tagged with nicotine

Related topics: smokers , smoking , smoking cessation , cigarettes , cigarette smoke

California declares electronic cigarettes a health threat

California health officials on Wednesday declared electronic cigarettes a health threat that should be strictly regulated like tobacco products, joining other states and health advocates across the U.S. in seeking tighter ...

10 hours ago
popularity not rated yet | comments 0

Possible link between E-cigs, risk of infections

(HealthDay)—Vapor from electronic cigarettes may increase young people's risk of respiratory infections, regardless of whether or not it contains nicotine, according to a new laboratory study reported in ...

Jan 11, 2015
popularity 4 / 5 (4) | comments 1

Nicotine

Nicotine is an alkaloid found in the nightshade family of plants (Solanaceae) which constitutes approximately 0.6–3.0% of dry weight of tobacco, with biosynthesis taking place in the roots, and accumulating in the leaves. It functions as an antiherbivore chemical with particular specificity to insects; therefore nicotine was widely used as an insecticide in the past, and currently nicotine analogs such as imidacloprid continue to be widely used.

In low concentrations (an average cigarette yields about 1 mg of absorbed nicotine), the substance acts as a stimulant in mammals and is one of the main factors responsible for the dependence-forming properties of tobacco smoking. According to the American Heart Association, "Nicotine addiction has historically been one of the hardest addictions to break." The pharmacological and behavioral characteristics that determine tobacco addiction are similar to those that determine addiction to drugs such as heroin and cocaine. Nicotine content in cigarettes has actually slowly increased over the years, and one study found that there was an average increase of 1.6% per year between the years of 1998 and 2005. This was found for all major market categories of cigarettes.

This text uses material from Wikipedia licensed under CC BY-SA