Many people are turning to kratom as a means of combating opioid use disorder, but few people know what kratom actually is.

To clear the air about the controversial plant, Peter Hess of Inverse put together a video discussing what we know about kratom based on current research and anecdotal evidence provided by an increasing number of Americans who are turning to the alternative medicine despite it's dubious legal status.

Check out the crash course on kratom in the clip above.