Tag

Tobacco

All articles tagged with #tobacco

Decoded Nicotine Blueprint in Tobacco Sparks New Biotech Possibilities
science1 day ago

Decoded Nicotine Blueprint in Tobacco Sparks New Biotech Possibilities

A UK-Danish team unraveled the genes and enzymes that synthesize nicotine in tobacco, showing nicotine forms from glucose with the help of two enzymes (NaGR and NicGS) and glucose disappearing in the process—a discovery that solves a 200-year mystery and could let researchers suppress nicotine production or retool tobacco plants to manufacture vaccines and other pharmaceuticals. The work highlights new biotech applications for tobacco as a production platform, beyond smoking products, and was published in Nature Communications.

Cannabis and Tobacco Co-Use Linked to Near-Threefold Psychosis Risk in At-Risk Youth
health14 days ago

Cannabis and Tobacco Co-Use Linked to Near-Threefold Psychosis Risk in At-Risk Youth

A multisite study of over 1,000 individuals at clinical high risk for psychosis finds that using cannabis and tobacco together markedly raises long-term risk of developing a full psychotic disorder—about 2.9 times higher than non-users—compared with single-substance use. The effect is partly biological, as smoking tobacco increases cannabis THC absorption, potentially accelerating brain changes. Short-term symptoms rise with either substance, but the major difference appears over time in conversion risk, especially for heavy cannabis use paired with light tobacco use. Stopping both substances could reduce risk, highlighting the need to address co-use in at-risk populations. For those with established psychosis, ongoing tobacco use is linked to a roughly 20-year decrease in life expectancy due to cardiovascular and respiratory diseases.

UK launches landmark policy to forge a smoke-free generation
health1 month ago

UK launches landmark policy to forge a smoke-free generation

Britain approved a landmark anti-tobacco bill that permanently bans tobacco sales to anyone born on or after 1 January 2009, effectively raising the age limit each year to create a smoke-free generation; it also bans vaping in cars with children and in outdoor areas near schools, with studies suggesting the policy could deliver tens of thousands of extra healthy life years by 2075 and reduce youth smoking below 5% by the late 2040s.

UK to ban tobacco for anyone born after 2008, aiming for a smoke-free generation
health1 month ago

UK to ban tobacco for anyone born after 2008, aiming for a smoke-free generation

Britain’s Tobacco and Vapes Bill, backed by Parliament, would bar tobacco sales for anyone born on or after January 1, 2009, in an effort to create a smoke-free generation. The measure also expands powers to regulate tobacco, vaping and nicotine products, including flavour and packaging rules and banning nicotine branding from being marketed to children, while extending smoke-free zones and prohibitions on vaping in places like playgrounds, cars with kids, and near schools and hospitals; royal assent is expected soon.

The Roadblock to a Tobacco-Free Generation: Why Generational Bans Struggle to Take Hold
health1 month ago

The Roadblock to a Tobacco-Free Generation: Why Generational Bans Struggle to Take Hold

The Conversation argues that while a tobacco-free generation—phasing out cigarette sales for people born after a cutoff—could dramatically reduce preventable deaths, it faces legal, political, and cultural hurdles. Objections include underestimation of smoking risks, tobacco industry tactics, and concerns about personal autonomy. Trials exist (Brookline, Maldives, Massachusetts proposals) with mixed outcomes, including repeals in some places and new bills elsewhere, underscoring that bans are not a silver bullet. Experts emphasize that success depends on combining bans with high prices, plain packaging, advertising and flavored-product restrictions, cessation support, and clear public health messaging to reduce initiation and sustain progress.

U.S. Smoking Rate Dips Below 10% for First Time
health2 months ago

U.S. Smoking Rate Dips Below 10% for First Time

A national NHIS-based study finds smoking among U.S. adults fell to 9.9% in 2024 (about 25 million people), down from 10.8% in 2023—the first single-digit rate on record. If the pace continues, it could help meet the 2030 federal target of 6.1%, but cigar and e-cigarette use haven’t declined, with 18.8% of adults using some tobacco product in 2024 (roughly 47.7 million). The study in NEJM Evidence also calls for a centralized federal tobacco-prevention capacity to sustain progress.

Tobacco and Cannabis Use Depletes Brain's 'Bliss Molecule'
health6 months ago

Tobacco and Cannabis Use Depletes Brain's 'Bliss Molecule'

A study using PET scans found that co-using cannabis and tobacco alters brain chemistry by increasing FAAH enzyme levels, which reduces the activity of the 'bliss molecule' anandamide, potentially explaining higher depression, anxiety, and addiction challenges in users of both substances. This research could guide new treatments for cannabis use disorder, especially among tobacco co-users.

Tobacco and Cannabis Combo Linked to Brain Changes, Study Finds
health6 months ago

Tobacco and Cannabis Combo Linked to Brain Changes, Study Finds

A small preliminary study suggests that using tobacco with cannabis causes unique brain chemistry changes, particularly involving the enzyme FAAH, which may explain worse addiction and mental health outcomes in co-users compared to those who use only one substance. Further research is needed to confirm these findings and understand the mechanisms involved.

Tobacco and Cannabis Combine to Impact Brain's Happiness System
health7 months ago

Tobacco and Cannabis Combine to Impact Brain's Happiness System

A study shows that co-using cannabis and tobacco increases FAAH enzyme levels in the brain, reducing the 'bliss molecule' anandamide, which may explain higher anxiety, depression, and difficulty quitting among co-users. This discovery offers a potential target for developing treatments for cannabis use disorder, especially in those who also use tobacco.

New Discovery Reveals Hidden Impact of Tobacco on Health
science-and-health1 year ago

New Discovery Reveals Hidden Impact of Tobacco on Health

Archaeologists from the University of Leicester have discovered that tobacco leaves chemical traces in human bones, persisting for centuries, which provides new insights into historical tobacco use and its long-term health effects. This study, published in Science Advances, analyzed skeletal remains from pre- and post-tobacco eras, revealing that tobacco consumption was more widespread across different demographics than previously thought. The findings challenge traditional reliance on dental evidence for identifying ancient tobacco use and have implications for modern health research and tobacco control efforts.