Through his research, he believes there may be a link between chronic use of marijuana — especially when started at a young age — and Alzheimer’s. 
Moral issue:  In addition to the money and organizing efforts driving the legalization campaigns, Fortanasce said widespread ignorance has enabled the marijuana lobby to obfuscate the issue. While marijuana may have some medicinal properties (cannabidiol in pot, for example, can help decrease nausea and be used to treat seizures), Fortanasce noted that there are already medications on the market that are far more efficacious than marijuana.