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الوسم: vaping

  • Multiple Cannabis Use Methods May Indicate Addiction Risk

    Cannabis Use Patterns
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    Today, cannabis consumption extends beyond just smoking. People now choose from options like vaping, ingesting in foods or beverages, or inhaling vaporized concentrates. A recent study in the U.S. suggests that the variety of methods someone uses may reveal important details about their usage habits.

    Researchers at NYU Langone Health discovered that adults who utilize multiple forms of cannabis are significantly more likely to use it daily. They also have a higher chance of displaying signs of cannabis use disorder, a condition characterized by problematic, hard-to-control use that causes significant issues.

    With changing laws and shifting public attitudes, cannabis use has become more prevalent across the United States. Recent national estimates indicate that tens of millions of Americans aged 12 and older have used cannabis within the past month.

    Cannabis products deliver effects through various methods. Smoking acts quickly, whereas edible products tend to have delayed but longer-lasting effects. Vaping heats cannabis without combustion, and dabbing involves inhaling vaporized concentrates with high THC levels—the primary compound responsible for intoxication.

    The study analyzed data from 17,732 adults who reported using cannabis in the month prior, sourced from the 2022–2023 National Survey on Drug Use and Health—an extensive survey tracking substance use nationwide.

    Instead of isolating each consumption method, researchers examined how different methods co-occurred, identifying common usage patterns among users.

    Approximately 48% of participants primarily smoked cannabis. An additional 21% commonly combined smoking and vaping, while 17% mainly consumed edible cannabis products.

    The remaining 14% formed what the researchers labeled a polymodal group—individuals who used nearly all available forms rather than sticking to just one.

    This smaller group stood out in terms of usage frequency. Nearly half of those employing multiple methods reported daily use.

    In contrast, daily use was less prevalent in other groups—about 28% among mostly smokers, 31% among those who smoked and vaped, and only 13% among primarily edible consumers.

    When it came to cannabis use disorder, the differences were even more striking. About 67% of the multiple-method users met criteria for the disorder, compared to 36% of primary smokers, 47% of those who combined smoking and vaping, and 15% of edible users.

    This suggests that using cannabis through various methods may be a key indicator of heavier, potentially problematic use.

    Lead researcher Dr. Omar El-Shahawy recommends that healthcare providers consider asking patients about how they consume cannabis, not just whether they use it. Patients who frequently switch between methods might require closer evaluation of their use patterns.

    The study also found demographic differences. Young adults aged 18 to 25 were more common among those who smoked and vaped or used multiple forms. Meanwhile, women and college graduates were more often among those who primarily used edibles.

    Additionally, cannabis users who smoked also tended to smoke cigarettes more often than those who mainly vaped or ate cannabis. Senior author Joseph Palamar expressed concern about this overlap, as combining smoking tobacco and cannabis can increase exposure to harmful chemicals and lung irritants.

    The research was published online on August 8, 2026, in the journal Addictive Behaviors. The authors plan to explore why individuals prefer certain forms—such as whether sleep or pain management motives influence their choices.

    These findings go beyond simply asking if someone uses cannabis; they highlight that the pattern and variety of consumption may better identify those at higher risk of frequent use and addiction.

    However, the study cannot establish causation—it’s unclear whether using multiple forms leads to addiction or if heavier users are simply more likely to try various methods. Since data relied on self-reporting, some participants might not have fully disclosed their use, but the large, nationally representative sample underscores the importance of further investigation, especially as product options expand and become more accessible.

    Source: NYU Langone Health

  • E-Cigarette Chemicals Could Raise Heart Disease Risk

    E-Cigarette Chemicals Could Raise Heart Disease Risk

    Vaping is often considered a safer alternative to smoking, with many believing that it only produces harmless water vapor. However, scientific research indicates otherwise.

    As e-cigarettes become more widespread, scientists are uncovering new information about their impact on the human body. An increasing number of studies suggest that vaping can harm the heart and blood vessels, elevating the risk of serious health issues. These findings have led the American Heart Association to issue warnings that vaping is not without danger.

    Recent research published in the June 2026 issue of Circulation: Arrhythmia and Electrophysiology reveals that certain cooling chemicals found in some vaping products may disrupt the heart’s electrical signals. This disruption raises concerns about an increased likelihood of irregular heart rhythms and, in some cases, cardiac arrest.

    E-cigarettes operate by heating a liquid that typically contains nicotine, flavorings, and other chemicals. Instead of producing smoke, they generate an aerosol that users inhale into their lungs. Although often called vapor, this aerosol consists of tiny particles and chemicals capable of entering the body. According to the U.S. Food and Drug Administration, many of these substances are harmful or potentially harmful.

    Studies have detected chemicals such as formaldehyde, heavy metals, and other toxic compounds in e-cigarette aerosols. These substances are linked to heart disease, lung disease, and cancer. Scientists are also improving their ability to measure how much of these chemicals users inhale during typical vaping sessions.

    Nicotine remains a primary concern because it is highly addictive and affects nearly every organ in the body. It increases blood pressure, accelerates the heart rate, and causes blood vessels to narrow, making the heart work harder. Over time, these effects can lead to increased risks of heart attack, stroke, heart failure, and peripheral artery disease. Some e-cigarettes contain nicotine amounts equivalent to a full pack of cigarettes, making dependence easier to develop.

    Additionally, research suggests vaping may boost oxidative stress and inflammation, damage blood vessel linings, and promote the buildup of fatty deposits in arteries—the early stages of cardiovascular disease. Young people are especially at risk; since brain development continues into the mid-twenties, nicotine exposure during adolescence can impair learning, attention, memory, and impulse control.

    Flavored vaping products, including those with fruit and candy flavors, are particularly popular among teens, raising alarms about their role in fostering nicotine addiction. Some companies claim nicotine can boost concentration and mental performance, but current evidence does not support lasting cognitive benefits. Any supposed short-term gains are more likely due to relief from withdrawal symptoms than genuine improvements in brain function.

    Health experts emphasize that quitting all tobacco and nicotine products remains the healthiest option. Effective treatments, such as FDA-approved nicotine replacement therapies and professional counseling, are available to help many succeed in quitting.

    This summary reflects an accumulation of scientific evidence rather than findings from a single study. Multiple research efforts, including those published recently in Circulation: Arrhythmia and Electrophysiology, strengthen the conclusion that vaping is not harmless. Nonetheless, as e-cigarettes are relatively new, ongoing research is essential to understand their long-term effects over decades.

    While some adults use e-cigarettes as part of a smoking cessation plan, individuals who have never used tobacco—particularly children, teenagers, and young adults—should avoid vaping due to its risks to heart health, blood vessels, and brain development.

    For optimal health, consider reviewing studies on low-dose lithium supplements, the relationship between egg consumption and heart disease, and recent findings about potatoes, high blood pressure, and the best bread choices for those with heart conditions.

    Source: American Heart Association.

  • Hidden Vape Chemicals Could Severely Damage Your Heart

    Hidden Vape Chemicals Could Severely Damage Your Heart

    Many vaping products are crafted to give a cool, refreshing sensation when inhaled, which makes e-cigarettes more appealing to some users. In recent years, manufacturers have shifted toward using synthetic cooling agents instead of traditional flavors like mint or fruit. These chemicals can create a cool feeling in the throat and mouth without adding a strong taste. However, scientists are now investigating whether these newer additives are truly safe.

    While e-cigarettes are often promoted as a substitute for traditional cigarettes, they still deliver nicotine and numerous other chemicals into the lungs. Emerging research suggests that some of these substances may impact the heart, blood vessels, and lungs in ways that aren’t fully understood yet.

    A recent study published in Circulation: Arrhythmia and Electrophysiology has raised new concerns. Led by researchers from the University of Louisville School of Medicine, the study found that synthetic cooling compounds commonly used in e-cigarettes, such as WS-3 and WS-23, can lead to changes associated with irregular heart rhythms in both mice and human heart cells grown in laboratory settings. These compounds have become more popular because they make inhaling vapor smoother and lessen the harshness sometimes caused by nicotine. Their lack of strong flavor often means they escape the regulations targeting flavored vaping products aimed at youth.

    To assess the potential impact on heart health, researchers conducted controlled experiments with male mice exposed to aerosols from e-cigarettes containing nicotine along with different cooling agents. They monitored heart rate, electrical activity, and signs of irregular heartbeats while measuring nicotine levels through blood samples. Complementing this, they also exposed human heart cells in the lab to observe direct effects of these cooling chemicals, especially under stress conditions that mimic body responses during excitement or anxiety.

    Findings indicated that cooling agents might destabilize the heart’s electrical system. All tested compounds influenced heart rate variability—a key indicator of how the heart reacts to nervous signals—and changes in this measure are linked to higher cardiovascular stress and increased risk of arrhythmias. The compound WS-23, in particular, had notable effects; mice exposed to e-cigarettes with WS-23 experienced significantly more premature heartbeats and electrical disturbances that could predispose them to dangerous arrhythmias.

    In the lab, the human heart cells generally didn’t show drastic changes under normal conditions. However, when exposed to stress-related hormones, the presence of cooling agents altered the electrical recovery time between beats, suggesting these substances may be especially problematic during stress.

    Importantly, the study did not find clear evidence that these cooling chemicals increased nicotine uptake. Instead, it appears they might directly influence heart function. Nonetheless, the research has limitations: animal responses don’t always mirror human reactions, only male mice were studied, and lab-grown human cells can’t fully replicate what happens in live humans. Plus, real vaping products often contain many additional ingredients not examined in this study.

    Despite these constraints, the findings highlight a previously underrecognized potential health risk. Sales of products containing synthetic cooling agents have surged, yet their effects on heart health remain largely unknown. The study suggests that additives mainly used to improve the vaping experience could pose biological risks that deserve more scrutiny.

    While the research doesn’t conclusively prove that these cooling agents cause heart rhythm issues in people, it underscores the importance of further long-term studies. It also serves as a reminder that FDA approval of vaping products doesn’t necessarily mean they are safe. Continued research into every ingredient in e-cigarettes is vital for safeguarding public health.

    For those concerned about heart health, it’s worth exploring studies on how vitamin D impacts cholesterol, the effects of egg consumption on heart disease, and the best supplements for cardiovascular prevention. Additionally, wild blueberries might offer benefits for both your heart and brain.

    Source: University of Louisville.

  • Vaping Post-Smoking Cessation Could Still Raise Lung Cancer Risk

    Vaping Post-Smoking Cessation Could Still Raise Lung Cancer Risk

    Millions of individuals worldwide have recently turned to e-cigarettes. Many smokers view vaping as either a stepping stone to quitting traditional cigarettes or as a safer, long-term alternative. Unlike conventional cigarettes, e-cigarettes don’t burn tobacco; instead, they heat a liquid that users inhale as vapor. Since there’s no smoke involved, vaping is often promoted as a much less harmful option.

    This appeal has drawn smokers looking to improve their health without giving up nicotine entirely. Some public health discussions in certain countries have even supported e-cigarettes as a tool to help smokers quit. However, scientists consistently warn that just because something is less harmful doesn’t mean it’s harmless.

    A new study published in Nature Medicine indicates that former smokers who switch to e-cigarettes may still face a significantly increased risk of lung cancer compared to individuals who quit smoking altogether. Lung cancer remains the leading cause of cancer-related deaths globally, claiming more lives than any other cancer type and often being diagnosed late when the disease has already progressed.

    Smoking is the most avoidable cause of lung cancer, making quitting one of the most effective ways to lower risk. However, because lung cancer develops slowly—taking years or even decades to manifest—it’s challenging to assess the long-term effects of newer products like e-cigarettes. Prior research mainly addressed short-term symptoms, such as sore throats, coughing, and breathing difficulties. To truly understand the potential long-term risks, large-scale, long-duration studies are necessary.

    Researchers in South Korea utilized one of the world’s largest health databases, analyzing data from the National Health Screening Program that included over 4.5 million people. They compared three groups: ongoing smokers, individuals who quit smoking entirely, and those who switched to e-cigarettes after quitting traditional cigarettes.

    The results showed a clear trend: those who never smoked had the lowest lung cancer risk. Former smokers who transitioned to e-cigarettes, however, faced a notably higher risk of developing lung cancer and dying from it. Specifically, compared to those who quit smoking completely, e-cigarette users had a 56% higher chance of developing lung cancer and were twice as likely to die from it.

    While switching to vaping was associated with better outcomes than continuing to smoke, it didn’t match the protection provided by complete nicotine abstinence. The study also found that the benefits of remaining smoke-free diminish over time among vapers. After five or more years without smoking, e-cigarette users still exhibited significantly higher risks of lung cancer compared to those who never vaped.

    Among adults aged 50 to 80, these findings are especially concerning. Vaping was linked to a 91% increase in lung cancer risk and a 92% higher chance of dying from the disease. Scientists highlight that e-cigarettes are not chemically inert. Research has detected numerous potentially hazardous substances in vaping products, including carcinogens and toxic metals such as lead, nickel, and chromium. Repeated exposure to these substances could gradually damage lung tissue over many years.

    The authors note that their study cannot definitively prove that e-cigarettes cause lung cancer, but the data strongly imply that vaping may hamper significant health gains achieved through smoking cessation. This raises a crucial public health question: while e-cigarettes may be safer than smoking for some users, are they safe enough to serve as a permanent replacement?

    The evidence suggests that for those aiming to reduce their lung cancer risk, complete cessation of smoking and long-term avoidance of e-cigarettes offers the greatest health benefits. As more long-term research emerges, healthcare professionals and policymakers may need to revisit how vaping is recommended and framed for those seeking a healthier future.

    For additional insights, consider studies indicating that a low-carb diet might increase overall cancer risk or explore new strategies to improve longevity among cancer survivors. You can also find information on anti-cancer superfoods and evidence suggesting daily vitamin D3 supplementation could lower the risk of cancer-related death.

    Source: Study published in Nature Medicine, utilizing data from South Korea’s National Health Screening Program.

  • Large Study Finds E-Cigarettes Increase Lung Cancer Risk

    Large Study Finds E-Cigarettes Increase Lung Cancer Risk

    Credit: Unsplash+

    For years, electronic cigarettes and vaporizers have been marketed as safer alternatives to traditional cigarettes. Without burning tobacco, many believed they posed less health risk than smoking. Their colorful flavors, sleek designs, and aggressive advertising reinforced the idea that vaping was a healthier choice.

    Some health experts even argued that e-cigarettes could help smokers quit and lower their chances of developing smoking-related diseases. Quitting smoking remains one of the best steps to improve health — reducing risks of heart disease, stroke, and various cancers. The longer someone stays off cigarettes, the more their health benefits grow. However, increasing concerns have emerged about whether replacing cigarettes with e-cigarettes is truly safe.

    A recent study published in Nature Medicine adds to these worries. Researchers analyzed health data from over 4.5 million individuals in South Korea to examine if using e-cigarettes after quitting smoking impacts the likelihood of developing lung cancer and dying from it.

    Lung cancer remains one of the deadliest forms globally, with approximately 2.5 million new cases and 1.8 million deaths reported in 2022. Smoking is the leading preventable cause of lung cancer, with risk levels rising the longer and more heavily a person smokes.

    Because lung cancer typically develops over decades, understanding the long-term effects of vaping has been challenging. Most previous research focused on short-term issues like cough, sore throat, and breathing problems. Larger, long-term studies are needed to determine if vaping modifies the risk of serious diseases like cancer.

    The study utilized data from South Korea’s National Health Screening Program, involving nearly 4.5 million participants. Researchers tracked smoking and vaping habits over several years and categorized individuals into groups such as current smokers, those who quit briefly, and those who quit long-term. Particular attention was paid to adults aged 50 to 80, who are at higher risk for lung cancer.

    The results were striking. Those who completely stopped smoking had the lowest risk of developing lung cancer and dying from it. Conversely, former smokers who switched to e-cigarettes faced significantly higher risks. Compared to those who quit entirely, e-cigarette users had a 56% greater chance of developing lung cancer and were twice as likely to die from it.

    The study also indicated that vaping might hinder the health benefits gained from quitting smoking. Long-term quitters who abstained from cigarettes for at least five years still faced an elevated lung cancer risk if they used e-cigarettes. Even those who quit smoking less than five years ago saw some protective benefits diminish if they switched to vaping.

    The findings were especially alarming among adults aged 50 to 80. In this group, e-cigarette use was associated with a 91% higher chance of developing lung cancer and a 92% higher risk of death from it, compared to individuals who completely ceased nicotine use.

    Experts warn that e-cigarettes are not risk-free. While they don’t involve burning tobacco, they can still expose users to harmful substances. Studies have detected carcinogenic chemicals like formaldehyde, alongside toxic metals such as lead, nickel, and chromium, in some vaping products. These substances could contribute to long-term damage to the lungs and other organs.

    Although the study does not definitively prove that vaping causes lung cancer, the strong association suggests that using e-cigarettes after quitting smoking may undermine some of the health benefits of abstaining from tobacco.

    These findings challenge the common perception that e-cigarettes are completely harmless substitutes for traditional cigarettes. While vaping may be less damaging than smoking, the best health outcomes are associated with quitting all nicotine products entirely.

    The large scale and extended follow-up of this research highlight the potential serious risks linked to vaping that are only beginning to be understood. Recognizing these risks, healthcare providers and public health officials might need to revisit how they advise smokers and former smokers about e-cigarette use.

    If you’re interested in cancer prevention, consider exploring studies showing that a low-carb diet could raise overall cancer risk and that berries may help prevent cancer, diabetes, and obesity.

    Additional health insights include recent findings on how milk consumption influences heart disease and cancer risk, as well as evidence that vitamin D supplements could significantly lower cancer mortality rates.