If you Google for LSD/Mushrooms/Peyote/Ketamine or any other hallucinogenic substance you will find confirmation that it has a PROFOUND effect on the subconscious mind, even altering an adult persons personality completely within a single session I can personally confirm that a heroic dose of LSD kicked me out of my depression for a solid 2 years without having to take it again (it's starting to creep back now). 

Here are some articles about such therapy:

https://www.mapscanada.org/news/psychedelic-therapy

And when I googled people fixing their posture with these substances, I found multiple examples:

https://www.bluelight.org/xf/threads/psychedelics-for-muscle-tension-posture-problems.483221/

https://www.reddit.com/r/Psychonaut/comments/9j6wyf/mushrooms_fixed_my_posture/

There's also plenty of people around who use these substances with yoga, and claim that they can get FAR deeper into stretches and positions than they can when sober. 

With the name of this forum, I bet a lot of users are probably clued into some esoteric ideas about using the mind to control the functioning of the body.

People report their entire lives being changed from taking hallucinogens/psychedelics and just watching the effects. What if you went into the trip with the express purpose and full intention of using your expanded awareness to correct your body?

Has anyone tried using psychedelics to correct their posture or growth? I wonder if it's ever even been attempted..