Health

US seeks to drastically cut nicotine content in cigarettes

President Joe Biden's administration on Tuesday announced it would develop a new policy requiring cigarette producers to reduce nicotine to non-addictive levels—a move that would deal a powerful blow to the tobacco industry.

Health

Harmful effects of e-cigarettes

The Norwegian Institute of Public Health (NIPH) was commissioned by the Ministry of Health and Care Services (HOD) to assess whether the use of e-cigarettes containing nicotine can be harmful to health. The report is based ...

Neuroscience

Synaptic connectivity of a novel cell population in the striatum

A new study from the Department of Neuroscience at Karolinska Institutet characterizes a novel neuronal population in the basal ganglia, responsible for the interaction between two types of neurotransmitters, GABA and acetylcholine. ...

Health

New study finds global adolescent vaping is low

A new study published today in the scientific journal Addiction has found that approximately 8.6% of adolescents reported using e-cigarettes (vaping) in the past 30 days, but only 1.7% engaged in frequent vaping. This suggests ...

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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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