There are still many questions about e-cigarettes, including the breath you inhale when you breathe.
Recent study results show that vapors from a variety of devices contain potentially toxic metals, including lead. The study followed last year's research that detected metals in e-liquids used in the equipment.
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The researchers at the Johns Hopkins Bloomberg School of Public Health recruited 56 daily users of e-cigarettes to study the fumes they give off. "We have developed a relatively simple system that collects the aerosol, which people call vapors, and we almost caught it as soon as it came out of the e-cigarette," said study author Ana María Rule, PhD, MHS Men (1
A significant number of devices emitted vapors with potentially unsafe levels of lead, chromium, manganese, and / or nickel, says Rule, a scientific assistant to the Department of Environmental Health and Technology at the Johns Hopkins Bloomberg School of Public Health.
"The EPA has national air quality standards, there is a limit set by the EPA for health effects, and nearly half of our samples have exceeded that limit." Rule says.
"This is the first document that actually shows that the concentrations in the aerosol that people inhale are actually they're actually parabolic to health-related threshold limits, "she adds, noting that additional investigations involving the same 56 vapors found nickel and chromium levels in urine and saliva in humans related to the values measured in the vapors "- as confirmation of e-cigarette consumers were exposed to the metals."
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E-cigarettes are battery-powered devices that heat liquid nicotine with a metal spiral and turn it into a mist or vapor that the There are about 600 different species that you can buy online and up to 8,000 different ones Types of liquids.
The Hopkins researchers also tested the presence of metals in e-liquid refill dispensers and the remaining liquid in the e-cigarette tanks.
"Knowledge Many metals are poisonous when inhaled, we wanted to verify that," says Rule. "We did not know what we would find."
The metals they discovered on regular inhalation have been implicated in lung, liver, immune, cardiovascular and brain damage as well as cancer.
How are the metals penetrate the steam
Some of the metals can get into the vapor through their contact with the metal coil, which does not explain the presence of lead, since the windings contain no lead. "There is no reason that lead is there," says Rule.
It is possible that metals may be present in the flavors added to some liquids, or that impurities may come from the materials used in the containers for the liquids, but further research is needed in this area.
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The Small Study, published online in Environmental Health Perspectives brings some important points home, says Michael Burke, Ed.D., Program Manager of the Mayo Clinic Nicotine Dependence Center.
"You do not know what you breathe. It depends on the liquid, the heating element and what you are inhaling into the steam, "said Burke Men's Health .
" What we really need, "he says, "is a [FDA] process by which the liquids are standardized. The elements of food are standardized and undergo tests to show that they are safe.
What are the health implications of using e-cigarettes?
Scientists need decades of research to fully explore the potential long-term health effects of steaming, yet, so far we know what you risk when you smoke.
You may feel dehydrated.
Glycol and glycerine vapor, found in most e-cigs, are irritants that can dry out your mucous membranes (skin-like) Lining on eyelids, nostrils, mouth and lips.) The result? Many unsuitable side effects: itchy eyes, dry mouth and throat and dry cough.
You may become addicted.
Although e-cigarette vapor does not contain so many harmful chemicals Like cigarette smoke, which contains a lethal mix of 7,000 chemicals, according to the Centers for Disease Contro L (CDC) most fumes still contain a key ingredient: highly addictive nicotine. What does that mean? Yes, you can still get addicted – even if there is less nicotine. And while some smokers try e-cigs in the hopes of getting off cigarettes, the results are mixed, with success generally low in the long run. This resulted in a review of twelve studies and surveys. This may be the reason why the Food and Drug Administration (FDA) has not approved e-cigs as a smoking cessation aid.
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You may feel dizzy or ill.
Low doses of nicotine in e-cigarettes can cause the typical symptoms of cigarette smokers – dizziness, abdominal pain, nausea and vomiting, especially among first-time users, in the journal Circulation.
You put your heart health at risk.
Nicotine in e-cigs causes your heart to beat faster, raises blood pressure and can harm your heart, as described in a report by the American Heart Association. Over time, the ingredient can also damage heart cells possibly contributing to heart disease.
You could increase your cancer risk.
It's no surprise that cigarettes cause lung cancer, but e-cigs also contain carcinogens, including formaldehyde (the chemical that these conserved frogs you prepared in high school biology biology). The hotter the e-cigarette gets? The bigger your exposure. But even relatively low heat E-cigs expose Vape users  (19659042]) to harmful levels of formaldehyde.
You may increase the risk of severe lung disease.
A common flavoring in E-Cig vapor named diacetyl has been associated with severe respiratory disorders and an irreversible lung disease called "popcorn lung" or bronchiolitis obliterans National Institute for Occupational Safety and Health (NIOSH). Even coarser? Ninety-two percent of the tested e-cigs contained diacetyl, a study was found.