The popularity of e-cigarettes continues to grow among young people and now a new warning about dripping.
A new study finds one-quarter of teens who use e-cigarettes have tried dripping liquid nicotine directly into the heating coils of the device.
This creates a thicker vapor cloud and many teens say it gives them a better flavor and a stronger hit.
While there is no proof that it causes any additional health risks, it may expose users to higher levels of toxic chemicals.
