Just How Harmful Is Vaping? More Evidence Is Emerging.
Now, researchers are coming to understand the hazards of vapes themselves. In a study from last month, for example, a team of scientists analyzed the mist from popular vapes and found such high levels of heavy metals that one researcher thought their machine had malfunctioned. Other studies have suggested that vaping can affect the heart, lungs and brain.
Data on the long-term health effects is limited, because vapes are relatively new and constantly evolving. Many people who use them are in their teens or 20s; it might take a while before further effects become apparent. Consumers also often use both cigarettes and vapes, which makes it difficult to isolate harms from vaping alone. Vaping is still less common than cigarette use among U.S. adults, 4.5 percent of whom said they vaped in2021. Nearly 8 percent of high school students reported vaping in the last month in a 2024 survey.
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