[notadoc]

On a similar note, there are many studies about ketamine administration (the anesthetic) having positive impacts on depression and chronic pain.

There are ongoing clinical trials, it has been widely covered in media lately, and many major US cities have doctors who run ketamine clinics.

https://clinicaltrials.gov/ct2/show/NCT00088699

http://nymag.com/scienceofus/2016/03/what-its-like-to-treat-...

http://www.npr.org/sections/health-shots/2015/09/28/44320359...

Is it really surprising to anyone that mind altering chemicals could alter mental states? A silly question, obviously.