"How Does Marijuana Affect a Person's Life?
Compared to those who don't use marijuana, those who frequently use large amounts report the following:
lower life satisfaction
poorer mental health
poorer physical health
more relationship problems
People also report less academic and career success. For example, marijuana use is linked to a higher likelihood of dropping out of school.18 It's also linked to more job absences, accidents, and injuries.19"
From:
Marijuana DrugFacts | National Institute on Drug Abuse (NIDA)
"Brain Health
Marijuana's main psychoactive ingredient, delta-9 tetrahydrocannabinol (THC), attaches to the brain's cannabinoid receptors. These receptors connect to nerves in the brain that influence pleasure, memory, thought, concentration, sensory and time perception, and coordinated movement.
Multiple studies have linked marijuana use with a higher risk of the following psychotic symptoms:2
Delusions
Disorganized thinking and speech
Hallucinations
Teen marijuana use is also linked to an increased risk of depression and suicidal behavior.3"
From:
The Negative Health Effects of Marijuana