Written by: Ehsan Siddiqui
17 Feb 2026
Thinking of switching to vaping because it feels safer than smoking? While vaping is often marketed as 'safe', the science behind it reveals a different story. Smoking vs vaping: here's how both affect your body.
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Regular cigarettes burn tobacco, producing smoke containing various toxic chemicals like carbon monoxide and tar. These damage lung tissue, increase cancer risk, and contribute to heart and blood vessel disease.
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Vapes don’t burn tobacco; they heat a liquid to create an inhalable aerosol. While this avoids tar, numerous harmful chemicals & nicotine still reach your lungs, which can cause inflammation and cell damage.
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Both smoking and vaping are linked with harmful changes in lung function. Smoking has a long-established link to emphysema, COPD, and cancer. Vaping is linked with airway irritation and increased respiratory disease risk.
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Nicotine in both cigarettes and vapes narrows blood vessels, spikes blood pressure, and strains the heart, raising long‑term risks of heart attacks and strokes, regardless of delivery method.
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Both smoking and vaping deliver nicotine, a highly addictive substance. Vapes can make addiction easier to sustain because they are discreet, flavoured, and often used more frequently throughout the day.
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Vapes may contain fewer toxins than cigarettes, but they’re not safe. For youth and non‑smokers, vaping risks nicotine addiction and lung damage. The healthiest choice remains clean, smoke‑free air.
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