What causes greening out?

[Fartfart]

I hear vapor expansion has something to do with it but wondering why.

 

[Perfect_Speed4069]

Hallmarks of my greening out:

1. Dehydration
2. Low blood sugar
3. Using too much in too short a period of time (more than I'm used to, at least, especially after a break)

Not sure if vapour expansion has anything to do with it. Happens to me if I smoke (not vape) Moroccan hash in similar circs.

 

[topographic]

In my experience dehydration is a major factor in greening out. Drinking a tall glass of water stops the feeling of about-to-faint.

Note Perfect_Speed's #3. It doesn't need a rig; the only time I actually hit the floor involved a "My god, it's full of stars"-level home brownie.

Drinking water is an easy, cheap, safe thing to do before a session.

 

[Perfect_Speed4069]

"My god, it's full of stars"

I'm a curious way, this is precisely what I'm aiming for. In another, it's fucking terrifying. It's best we don't discuss Lacan at this point