News tagged with nicotine

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

ACOG: Pregnant women may believe E-cigarettes OK

(HealthDay)—More than 40 percent of pregnant women surveyed think electronic cigarettes are less harmful than tobacco cigarettes, according to a new study. The results of the study are scheduled to be presented ...

May 04, 2015
popularity 23 comments 1

Study identifies low back pain risk factors

New research presented today at the 2015 Annual Meeting of the American Academy of Orthopaedic Surgeons (AAOS) identifies nicotine dependence, obesity, alcohol abuse and depressive disorders as risk factors for low back pain, ...

Mar 25, 2015
popularity 44 comments 0

Extended pre-cessation bupropion helps smokers quit

(HealthDay)—Extended pre-quit bupropion is associated with reduced smoking behavior during the pre-quit period and improved short-term abstinence rates, according to a study published online Jan. 14 in ...

Mar 06, 2015
popularity 32 comments 0

Twitter helps smokers kick the habit, study finds

When subjects in a smoking cessation program tweet each other regularly, they're more successful at kicking the habit, according to a study by UC Irvine and Stanford University researchers. Specifically, ...

Mar 04, 2015
popularity 10 comments 0

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.

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