How/why does smoking weed make one loathe oneself?

Weed, as well as alcohol, are poisons. Why do you use poisons to entertain yourself? 

Anyone who loathes themselives after smoking weed probably doesn’t have high self esteem to begin with.

I didn't know that about pot; I've never heard or read it before.

Weed can't cause self-hate, but it can exaggerate any existing state.

Normal symptoms of weed include:

  reddened/bloodshot eyes 

  increased heart rate

  low blood pressure

  increased appetite

  loss of inhibition

  spontaneous laughter

  slightly altered thinking and memory

  slightly slowed reflexes and coordination

It has numerous medicinal benefits for glaucoma, muscle pain, and a wide range of specific ailments,
though drinking it as an oil or tea is better than smoking it.

   Mood and mental effects can vary depending on the person's predominant personality.

  A person who suffers from anxiety may find they become paranoid when stoned.

  Some people become horny and enjoy sensual activities and sex much more.

  Others become quiet and reflective, others sleepy.

   

  Very strong doses or specially bred varieties mildly hallucinogenic effects;

  can affect perception, including sound, vision, colour and other sensations.

There are over two hundred bio-active chemicals in marijuana apart from the well-known THC which is the main psychoactive molecule.
Different varieties of cannabis have differing amounts of these various substances.
This is one of the factors that makes it very complex for science to study. 

This post was edited by inky at January 7, 2019 6:09 AM MST

Oh yes at one time.  Because it is debilitating.