Well it depends on a person. I read one article that cannabis cures and controls almost all the kinds of diseases like Cancer, HIV, Autism, Epilepsy, Neurological disorders, Muscular disorders, Metabolic disorders, Mental disorders etc. I smoke weed about 2-3 times a week. I am from LA and it's legal here. So I always have http://allweed.us/ catalog of delivery services on hand, which is very convenient by the way. I get my weed usually within 30 min.