Alcohol is known to kill brain cells but can you point to a scientific study that supports cannabis as killing brain cells?
Alcohol is known to be harmful as once in the digestion process, alcohol is changed into metabolites such as acetaldhyde which are toxic to the brain. This is the cause of hangovers as caused from large alcohol consumption.
With cannabis, the active compound is phytocannabinoids which affect specific receptors in the body. The human body also produces these cannabinoids and has it's own endocannabinoid system.
Our endocannabinoid system has 2 types of recepter, CB1 receptor is located in the brain and nervous system while CB2 is in the immune system. In the case of CB1, growing evidence in the area of seizures is supporting that cannabis in an oil state is proving a benefit in not just treatment of seizures but even reversing the brain condition causing the seizure. And in the case of Alzheimers, cannabis is showing with much promise.
In 2005', a study on prevention of Alzheimers by cannabinoids was published in The Journal of Neuroscience stating that evidence grows that cannabinoids "protect the brain."
Seems to me that if cannabis killed brain cells, such results as above would be impossible.
My thanks to Dr. Malik Burnett, surgeon and physican adovcate, resident physican at John Hopkins, former executive director of non profit medical marijuana organization.