Researchers say adolescents often think that vaping pot is safer than smoking it. But it can increase the risk of dependence, other substance use and many other health, social and behavioral problems.
The spate of more than 2,500 acute vaping-related lung injuries tracked by the Centers for Disease Control and Prevention is on the decline, epidemiologists say, and the number of deaths has slowed.
A Navy veteran from Cleveland tried vaping marijuana to deal with his chronic pain. He landed in the hospital, becoming one of over 2,200 Americans who have suffered serious lung injury from vaping.
The legislation is not a blanket ban. Instead, it limits the sale of flavored nicotine vaping products, including menthol, "to licensed smoking bars where they may only be smoked on-site."
In September, the Trump administration said it would ban all flavored e-cigarette products in an effort to reduce the youth vaping epidemic. Since then, there's been no movement toward implementation.
Vaping has produced a diverse community of aficionados with all sorts of subspecialties. One vape-juice "mixologist" sells her recipes for as much as $1,500, while custom-made devices go for $3,000.
Many cases of vaping-related injury seem to involve THC, health officials say. That's led some states to take another look at the safety of the regulated cannabis market, as well as the black market.
Amid growing concerns over e-cigarette health risks, the Drug Enforcement Administration says it will collect vaping devices and cartridges at National Prescription Drug Take Back Day on Saturday.
The technology behind e-cigarettes has changed over the years, and researchers are now finding evidence that the way different sorts of vaping devices and e-liquids interact could harm consumers.