Does Vaping Affect Cardio? | Purple Haze MK

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Does Vaping Affect Cardio?

Yes. Vaping reduces cardiovascular efficiency through multiple mechanisms: nicotine elevates resting heart rate and blood pressure, aerosol particles inflame airways, and VO2 max is impaired. Here is what runners, cyclists and gym-goers need to know.

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Yes, vaping affects cardio performance. Nicotine is a cardiovascular stimulant that elevates resting heart rate and blood pressure, constricts blood vessels and reduces the headroom available to the cardiovascular system during exercise. Aerosol particles and flavouring compounds cause airway inflammation that impairs breathing efficiency and oxygen uptake. A 2024 study of regular e-cigarette users found lower peak oxygen consumption, lower chronotropic response and impaired skeletal muscle oxygen utilisation during exercise compared with non-users. VO2 max, the key measure of aerobic fitness, is measurably reduced in regular vapers. Compared to smoking, vaping is substantially less harmful to cardiovascular health, but compared to not using either, it creates real performance headwinds.

How Vaping Harms Cardiovascular Performance

Elevated resting heart rate

Nicotine stimulates adrenaline release, raising resting heart rate and blood pressure even at rest. During exercise your heart is already working hard to supply oxygen to muscles. A higher resting baseline means less capacity before hitting your cardiovascular ceiling, causing earlier fatigue at a given intensity level.

Reduced VO2 max

VO2 max is the maximum volume of oxygen your body can use per minute during exercise and is the single best predictor of endurance performance. Research on regular e-cigarette users documents lower peak oxygen consumption than non-users. Even a modest reduction in VO2 max translates to a measurable drop in sustainable pace over distances from 5km to a half marathon.

Airway inflammation

Vape aerosol contains ultrafine particles, flavouring chemicals and carrier compounds that cause inflammation of the airways. Inflamed airways have reduced cross-section, meaning each breath delivers less air to the lungs. During hard cardio when you need maximum oxygen uptake, any reduction in airway capacity directly limits performance.

Arterial stiffness

Research published in peer-reviewed cardiology journals documents significant increases in systolic blood pressure and heart rate for around 45 minutes after vaping, with repeated long-term exposure associated with arterial stiffness and damage to endothelial cells lining blood vessels. Stiffer arteries are less efficient at delivering blood to working muscles.

Impaired oxygen delivery

Some studies suggest vaping may impair oxygen delivery to muscles by affecting circulation and red blood cell function. During cardio exercise, skeletal muscle oxygen utilisation is a key performance determinant. A 2024 study found impaired skeletal muscle oxygen utilisation in regular e-cigarette users during exercise testing.

Inflammation and oxidative stress

Inhaled aerosol particles promote systemic inflammation and oxidative stress. Chronic low-grade inflammation is detrimental to cardiovascular health over time and contributes to atherosclerosis, the build-up of plaque in arteries that narrows vessels and further reduces exercise capacity.

VO2 max reduced

Regular vapers show lower peak oxygen consumption compared to non-users in exercise testing studies

45 minutes

Duration of elevated blood pressure and heart rate documented after a single vaping session in cardiology research

Far better than smoking

Switching from cigarettes to vaping substantially improves cardiovascular function by removing carbon monoxide and tar

Vaping vs Smoking vs Nothing: The Right Comparison

The most relevant comparison depends on who is asking. For smokers considering switching to vaping, the comparison is vaping versus continuing to smoke. On this measure, vaping is significantly better for cardiovascular health. Cigarette smoke contains carbon monoxide, which reduces the blood's oxygen-carrying capacity directly and dramatically, and tar, which causes serious long-term lung damage. Removing these through switching to vaping leads to measurable cardiovascular improvements. The 2025 CEASEFIRE randomised controlled trial tracked VO2 max improvements in smokers who switched to e-cigarettes over 12 weeks and found meaningful gains.

For non-smokers or for athletes who vape, the relevant comparison is vaping versus nothing. Here the picture is less favourable. Compared to a clean baseline, vaping introduces real cardiovascular and respiratory headwinds that will cost performance. A recreational runner or cyclist wanting to optimise their results would do better not vaping at all.

For vapers who care about fitness and are considering their options, nicotine pouches represent an alternative that removes all respiratory exposure. Visit Purple Haze MK at Stall 109, Milton Keynes Market to discuss nicotine pouch options.

Nicotine-free vaping is better for cardiovascular performance than nicotine-containing vaping because it removes the acute stimulant effects on heart rate and blood pressure. However, it is not entirely without consequence. The aerosol particles and flavouring chemicals from nicotine-free devices still cause airway inflammation in some users, which still affects breathing efficiency and oxygen uptake during hard exercise. Zero vaping remains the best option for peak cardio performance.

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This article is part of the Purple Haze MK Help and Guidance Centre, covering vaping, health and practical guidance. Browse all topics in the Help and Guidance Centre for clear, evidence-based information.

For more on vaping and health, visit the Purple Haze MK Help and Guidance Centre.

Frequently Asked Questions

Does vaping before a run affect performance?

Yes. Nicotine raises heart rate and blood pressure for up to 45 minutes after vaping. Exercising in this elevated state means your cardiovascular system has less reserve capacity before hitting its ceiling. Your perceived exertion at a given pace will be higher, your heart rate zones will be compressed and you will reach fatigue sooner. Avoiding vaping for at least an hour before a cardio session would reduce this acute effect.

Can athletes vape and still perform at a high level?

Some athletes do vape and still perform competitively, particularly those with high natural baseline fitness. However, the evidence indicates vaping creates measurable performance headwinds compared to a clean baseline. At recreational level the effect may not be obvious. At competitive level, where margins matter, the reduced VO2 max, elevated resting cardiovascular load and impaired oxygen delivery represent a real handicap.

Does vaping affect recovery after exercise?

It can. Nicotine constricts blood vessels, which reduces the delivery of oxygen and nutrients to recovering muscle tissue after exercise. Inflammation from inhaled aerosol compounds also adds to the post-exercise inflammatory load. Both factors can slow recovery between training sessions, potentially limiting the volume and frequency of training an athlete can sustain.

Is vaping better than smoking for athletes?

Yes, substantially. Switching from cigarettes to vaping removes carbon monoxide, which directly impairs oxygen-carrying capacity of the blood, and tar, which causes severe long-term lung damage. Athletes who smoke and switch to vaping typically see meaningful cardiovascular improvements. But for non-smokers who vape, the comparison that matters is against a clean baseline, where vaping still causes harm.