"I haven’t seen research on this and would like to.
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While vaping is a great alternative to smoking, it can have negative effects on the respiratory system. The most important question to ask is "what exactly am I vaping?". What kind of extract and what kind of a solvent was used to make the vape liquid. An extract is a concentrated form of cannabis, and a solvent is the medium that the extract is mixed with. Unhealthy solvent and unhealthy extract is not what you want to be inhaling, even if it is in a vaporized form. For the healthiest vape, utilize organically grown cannabis in its raw form, or make sure it has been purged of solvent.
andrewvanmd