Health effects on the body
How vaping aerosol can affect the lungs, heart, and other organs — and what "vapor" really contains.
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Independent health education
Clear, science-based facts about the harms of vaping
Vaping is often marketed as harmless, but a growing body of public-health research links e-cigarettes to lung injury, nicotine addiction, and cardiovascular strain. BreatheClear gathers what the evidence actually says — in plain language.
Explore the health effects Find quitting supportWhy this matters
E-cigarette use rose rapidly over the last decade, especially among teenagers and young adults. Because the products are relatively new, many people underestimate the risks. This site summarizes findings from major health authorities so you can make informed decisions.
Most
e-cigarettes contain nicotine, a highly addictive substance
Teens
are especially vulnerable to nicotine's effect on the developing brain
EVALI
a serious lung-injury outbreak was linked to certain vaping products
Unknown
long-term effects are still being studied by researchers worldwide
Figures reflect general findings reported by public-health organizations. See our sources.
Explore the topics
Each guide is written for a general audience and points to authoritative references.
Nicotine & addiction
Why nicotine is so addictive, how dependence forms, and its impact on the developing brain.
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Why young people are a focus of concern, and how flavors and marketing play a role.
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Common claims about vaping compared against what current research shows.
Read the guide →Quitting & support
Evidence-based strategies and free resources for people who want to stop vaping.
Read the guide →Questions & contact
Have a topic suggestion or a correction? Reach out to our editorial team.
Get in touch →Key takeaways
Vaping is not risk-free. While some public-health bodies view it as less harmful than smoking combustible cigarettes for adults who already smoke, "less harmful" does not mean safe — particularly for youth, pregnant people, and those who have never smoked.
Nicotine dependence is common. Most e-cigarettes deliver nicotine efficiently, and dependence can develop quickly, especially in adolescents.
Long-term effects are still unknown. These products have not existed long enough for researchers to fully understand decades-long outcomes. Caution is warranted.
Thinking about quitting?
Free, confidential help is available. In the United States you can call 1-800-QUIT-NOW or text to connect with trained coaches. Explore more options on our quitting page.
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Medical disclaimer: BreatheClear provides general educational information only and does not sell, promote, or facilitate the purchase of any tobacco, nicotine, or vaping product. This content is not a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider with questions about your health.