How bad is marijuana?

Not good: New data on marijuana shows that it may aggravate psychosis (schizophrenia, bipolar disorder). Do not be lulled into thinking that marijuana is harmless.

Addiction= disease: Marijuana is not bad. Using marijuana may be harmful. Disease is not a moral problem. Neither the addict or the drug is bad.

THC: Marijuana is not a good substance to use. In my opinion it really damages the brain. A recent study in england showed that iq decreases with thc use over a long period of time. If affects the brain, cardiac system and the liver. It really should not be used.

Many answers: The link to psychosis is low; most who will develop severe mental illness would have developed it anyway; it may surface sooner. Young people can get thrown off track in life's course. If smoked often bronchitis increases. When combined with alcohol the effect increases accidents. There is no specific cannibas associated disease. Occ. Use in adults is unlikely, for most, to have a neg. Impact.