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It negatively affects the developing brain, helps cancer spread by encouraging the growth of blood vessels around tumours, and increases the risk of dangerous heart rhythms in those who have just had a heart attack.
The flavourings in e-cigs – usually food additives – might have been tested for safety in terms of ingestion though the gut, but taking them in through the lungs after heating is completely different.
E-cigarette vapour contains toxic chemicals, and tiny particles that can harm lungs and blood vessels.
Professor Joep Perk, a heart specialist and spokesman for the European Society of Cardiology, said: 'It really surprises me that so little vapour from an e-cigarette is needed to start the heart disease ball rolling.
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And you inhale many of them in fairly high concentrations.Within the first hour, there was a 'rapid rise' in levels of a type of cell indicating damage to the inner lining of blood vessels, called endothelial progenitor cells or EPCs, said the scientists.This increase, they wrote 'was of the same magnitude as following smoking of one traditional cigarette'.To that end, a group of 13 health bodies, led by Public Health England and including Cancer Research UK, the Royal College of Physicians and Faculty of Public Health, issued an unprecedented 'consensus statement' in July supporting the principle that smokers should be encouraged to switch. Dedicated to the over-50 crowd, Our is a dating service for seniors who are single and ready to mingle.
So will long-term use of e-cigs cause heart disease? But the Swedish team noted that the average user takes 230 puffs a day – raising the prospect that prolonged use could cause serious damage. In August, a team at the University of Athens Medical School claimed that puffing on an e-cigarette for half an hour led to similar levels of stiffness in the aorta – the main artery – as smoking a tobacco cigarette. But it is a study in the journal Lancet Respiratory Medicine – which found e-cig users were 28 per cent less likely to quit tobacco smoking than those who didn't vape – that has perhaps caused the most dispute.