You switched from cigarettes to vaping, thinking it’s safer \u2014 especially without nicotine. But new research shows even nicotine-free vapes can harm your blood vessels, raising risks of heart disease and circulation problems.<\/p>\n
While traditional cigarettes are full of toxic chemicals and tar, vaping isn’t harmless. The e-liquid in vapes contains substances that, when heated, release byproducts that can damage lungs and airways \u2014 causing coughing, shortness of breath, and inflammation.<\/p>\n
Flavored vape juices add more risk, often containing harmful chemicals like:<\/p>\n
Diacetyl<\/strong>: linked to “popcorn lung”<\/p>\n<\/li>\n Benzaldehyde<\/strong>: irritates the respiratory system<\/p>\n<\/li>\n Heavy metals<\/strong>: from the heating coils<\/p>\n<\/li>\n<\/ul>\n Dr. Michael Blaha warns, \u201cYou\u2019re exposing yourself to chemicals we don\u2019t fully understand and likely aren\u2019t safe.\u201d<\/p>\n Vaping\u2019s popularity has surged \u2014 especially among youth \u2014 with over 2 million U.S. students using e-cigarettes in 2021, most choosing flavored types. Many of these young users never smoked before.<\/p>\n The 2024 study compared:<\/p>\n Nicotine-free vapes<\/p>\n<\/li>\n Nicotine vapes<\/p>\n<\/li>\n Traditional cigarettes<\/p>\n<\/li>\n<\/ul>\n All three impaired vascular function. Nicotine worsened the effect, but even nicotine-free vaping wasn\u2019t safe.<\/p>\n As researcher Dr. Marianna Nabbout put it: if a single vape can immediately affect blood vessels, long-term use could lead to chronic vascular disease.\n