Have you ever heard about Neuro-linguistic programming(NLP)? Your body contains 8 Chakras. These are instinct, or power in your body. Drugs can stimulate those different "Chakras". If one Chakras is low, you will get negative consequences. Like if your 5. Chakra is low, thats the sosial part of the Chakra. Guess witch drug that simulate that Chakra? MDMA, and that drug is also known for developing of Sosical skills.
Why do I think this has to do something with the drug restriction?

In 1970 The USA discovered (NLP), but the same year did USA restrict drugs.
(https://en.wikipedia.org/wiki/Comprehensive_Drug_Abuse_Prevention_and_Control_Act_of_1970)
https://en.wikipedia.org/wiki/Neuro-linguistic_programming


There is hard to find any information about drugs and NLP, but if you study NLP you learn that it does. At the moment there is a Norwegain wikipedia page that tells about witch drug that stimulates witch Chakra.

Heres the Norwegian Wiki page about it. Use google translate to translate it:

https://no.wikipedia.org/wiki/8-kretsers_bevissthetsmodell