Vaping instantly stiffens and tightens your blood vessels, even if it doesn't contain nicotine, a new study warns.
Less is known about long-term health consequences, Aussem said. But, she added, impairments in blood vessel function or lung cells are likely to contribute to heart orAnd with teenagers and young adults, Aussem noted, the concerns are not only those long-term health issues: Nicotine affects the developing brain in ways that might impair kids' learning and behavior, or"prime" them to be more vulnerable to other substance abuse.
"Often, people think the only bad component is the nicotine," said the study's senior researcher Felix Wehrli. For the latest study, Wehrli's team had 31 nonsmoking young adults inhale vapor from an e-cigarette that contained the typical e-liquid ingredients, except for nicotine. All had their blood vessel function measured before and after vaping -- via MRI scans of the large femoral artery in the leg.
Overall, the study found, participants' arteries showed a 34% reduction in dilation after vaping. That, in turn, meant less blood and oxygen flowing to the leg.
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