High global vaping rates among children expose them to toxins and carcinogens, some of which remain unknown. Nicotine concentrations in e-cigarettes can be very high, increasing addiction risk and harming developing adolescent brains. Vaping elevates blood pressure and heart rate, constricts blood vessels, and can stiffen arteries, creating long-term cardiovascular risks. Repeated vaping can lead to hypertension, irregular heart rhythms, stroke, and heart attack. Heating e-liquids at higher temperatures releases larger amounts of harmful chemicals that can enter the lungs, bloodstream, and heart, including known carcinogens such as formaldehyde and acetaldehyde.
Doctors have raised the alarm about high levels of vaping among children worldwide, saying they are convinced e-cigarettes are causing irreversible harm to their health. Cardiologists, researchers and health experts said they were extremely concerned about the harmful effects of e-cigarettes on millions of teenagers and young people, including exposure to toxins and carcinogens some of which are still unknown.
Vaping stresses children's cardiovascular systems, Lchen said. Their heart rate rises and their blood vessels constrict, which can stiffen arteries in the heart over time. Repeatedly vaping can lead to high blood pressure, which in turn increases the risk of developing an irregular heart rhythm, stroke and even a heart attack. Lchen cited a study published last year in the New England Journal of Medicine that suggested vaping increases the risk of stroke by almost a third (32%).
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