During brain development ~< 25, I recommend against indulging in marijuana. It is a psychoactive drug that can alter developmental growth processes with long-te

During brain development ~< 25, I recommend against indulging in marijuana. It is a psychoactive drug that can alter developmental growth processes with long-term consequences. Well into adulthood, expression of many of the genes regulating development are suppressed, and thus the means for structural change are more limited; thus adults tend to be more resilient to psychoactive exposures.