marijuana & children

“Patients who are under the age of 25, especially adolescents under the age of 16 or 17, should take extra caution using cannabis. This age group has an increased risk of psychosis and brain volume changes that may be permanent as seen in brain scans that are part of studying this effect.
 
“Cannabis is legally and medically a narcotic because narcotics are defined as any substance that is illegal and induces sleep. It is complex chemically and not yet fully understood, but it does not scientifically function like a typical narcotic. Like alcohol, cannabis can act as both a stimulant and a depressant. 
…

“Concerning cannabis use, research has indicated that cannabis intoxication definitely hinders attention, long-term memory storage, and psychomotor skills. As a psychoactive drug, cannabis alters mental functioning in some fashion.”
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https://www.veriheal.com/blog/is-cannabis-classified-as-a-hallucinogen-stimulant-or-depressant/
https://nida.nih.gov/publications/drugfacts/hallucinogens\