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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.

Significant genetic variations linked to cannabis use disorder identified in major global ancestries

Multi-ancestry genome-wide association study of cannabis use disorder.

22 Nov 2023

Maternal smoking linked to reduced childhood type 1 diabetes risk, effects fade in adulthood

The Lancet Regional Health-Europe study finds that maternal smoking during pregnancy may lower the risk of type 1 diabetes in children, but this protective effect diminishes in adulthood, with adult smoking showing no significant impact on type 1 diabetes risk.

16 Nov 2023

Oral nicotine pouches fail to satisfy cravings of current smokers

Oral nicotine pouches, a tobacco-leaf-free product marketed as an alternative to cigarettes, do little to curb current smokers' nicotine cravings, according to a new study.

15 Nov 2023

The spread of misinformation on Twitter regarding vaping

Researchers examine the discourse of misinformation related to electronic nicotine delivery systems on social media

15 Nov 2023

Neural circuits respond to rapid dopamine surges

Researchers assess the pharmacodynamics of dopamine signaling, brain connectivity/activity, and self-documented 'high' following methylphenidate exposure.v

14 Nov 2023

Young people begin to use nicotine through vaping rather than through cigarettes

Young adults are now more likely to vape than to use traditional cigarettes. After years of public health success in decreasing the numbers of people using cigarettes, researchers are seeing striking increases in the numbers of young people who use e-cigarettes regularly – so much so that, for the first time, there are more young people who begin to use nicotine through vaping rather than through cigarettes.

13 Nov 2023

Exploring the use of psychedelics as novel treatments for psychiatric disorders

Psychedelic compounds such as psilocybin, a substance found in various mushroom species, are garnering more research support as novel treatments for psychiatric disorders, but questions remain concerning who they may help the most.

13 Nov 2023

Global study zeroes in on vaping's respiratory risks among exclusive e-cigarette users

The VERITAS study, a global cross-sectional survey, aims to isolate the effects of vaping on respiratory health by focusing exclusively on individuals who vape but have never smoked, offering unique insights into the direct consequences of e-cigarette use.

8 Nov 2023

Teen-led study sheds light on the pervasive vaping culture and seeks paths for intervention

In a Canadian study, teenage researchers engaged their peers in focus groups to explore the realities of teenage vaping, uncovering troubling trends in usage and access but also identifying potential strategies for effective anti-vaping interventions.

7 Nov 2023

Regular marijuana use may raise the risk for heart failure, stroke or heart attack

Using marijuana regularly may raise the risk for heart failure, stroke or heart attack even after accounting for other cardiovascular risk factors such as Type 2 diabetes, high blood pressure and obesity, according to two preliminary studies to be presented at the American Heart Association's Scientific Sessions 2023.

6 Nov 2023

Does social media and academic performance impact e-cigarette use among adolescents?

The effects of academic performance on the association between e-cigarette use and social media influence.

2 Nov 2023

USC receives $20 million grant to study tobacco use among young people

USC faculty members Adam Leventhal, PhD and Caryn Lerman, PhD have received a $20 million grant for research to inform government regulations overseeing tobacco and its marketing, with a focus on protecting young people.

30 Oct 2023

Youth vaping skyrockets as 85% are exposed to e-cig ads, despite global bans

This cross-national study reveals that 85% of young adults across four countries have been exposed to e-cigarette advertising, despite existing regulations. The research also found a significant association between the level of media exposure and the likelihood of e-cigarette use among the youth.

30 Oct 2023

E-cigarette flavor restrictions may increase cigarette sales, study finds

The immense popularity of electronic cigarettes, or e-cigarettes, among young people has led many policymakers to restrict the sale of flavored varieties.

18 Oct 2023

Social media and mental health linked to rising e-cigarette use in American teens

Researchers find that symptoms of anxiety and depression mediate the link between social media use and e-cigarette usage among American school students. The study suggests that the effects are more pronounced in females, highlighting the public health concerns of social media's impact on youth.

17 Oct 2023

What are the effects of smoking cessation on vascular endothelial function?

The effects of smoking cessation on vascular endothelial function.

16 Oct 2023

Shaking things up: Whole-body vibrations rev up metabolism in young men

This study found that repeated sessions of whole-body vibration significantly increased the resting metabolic rate in healthy young men. The results suggest potential applications of whole-body vibration in addressing metabolic health issues, such as obesity.

15 Oct 2023

Depression's heavy toll: Unraveling its impact on overall health in US adults

Depression in US adults found to significantly raise risks of death, particularly from cardiovascular ailments. Increased awareness and treatment can mitigate impacts.

10 Oct 2023

Health experts redefine cardiovascular disease risk, prevention and management

Health experts are redefining cardiovascular disease (CVD) risk, prevention and management, according to a new American Heart Association presidential advisory published today in the Association's flagship journal Circulation.

9 Oct 2023

KFF Health News' 'What the Health?': An encore: 3 HHS secretaries reveal what the job is really like

This week, while KFF Health News' "What the Health?" takes a break, here’s an encore of a favorite episode this year: Host and chief Washington correspondent Julie Rovner leads a rare conversation with the current and two former secretaries of Health and Human Services.

5 Oct 2023