Single Session of Heated Tobacco Causes Blood Vessel Damage
A new study reveals that just one use of heated tobacco products can harm blood vessels and DNA in healthy smokers.
Research indicates that heated tobacco use leads to immediate blood vessel and DNA damage.
Systolic blood pressure rose and blood vessel function declined after using heated tobacco.
Experts call for stricter regulations on all nicotine products to protect public health.
A recent study published in the European Journal of Preventive Cardiology highlights the detrimental effects of heated tobacco products on cardiovascular health. Conducted on October 27, 2026, the research found that even a single session of using heated tobacco can result in significant damage to blood vessels and genetic material in otherwise healthy smokers.
The study involved 30 adult smokers, averaging 34 years of age, who underwent comprehensive assessments before and after using a tobacco heating device. Researchers measured blood pressure, collected blood samples, and evaluated blood vessel function through ultrasound scans. The results showed a concerning increase in systolic blood pressure by three millimeters of mercury and an 11% decrease in blood vessel function, indicating a reduced ability of arteries to expand in response to increased blood flow.
In addition to these findings, the study revealed a drop in venous oxygen saturation from approximately 71% to around 46%, suggesting impaired oxygen delivery throughout the body. Furthermore, researchers noted DNA damage in blood cells and signs of oxidative stress, indicating that the cells were responding to injury. Dr. Lea Strohm, the lead researcher, emphasized that these findings contradict claims that heated tobacco products are significantly less harmful than traditional cigarettes.
The implications of this study extend beyond individual health, as it raises questions about public health policies regarding nicotine products. Co-author Professor Thomas Münzel stressed the need for comprehensive regulations that encompass all forms of nicotine consumption, arguing that no nicotine product can be deemed safe for cardiovascular health. He called for unified regulations that include flavor restrictions and advertising bans to mitigate the risks associated with nicotine use.
Looking ahead, researchers advocate for larger, long-term studies to further investigate the lasting effects of heated tobacco use on cardiovascular health. As the popularity of these products continues to rise, understanding their impact on public health will be crucial in shaping future regulations and health guidelines.
