Some of the worst and most deadly diseases affect our brains. In multiple sclerosis, the immune system “causes communication problems between your brain and the rest of your body,” preventing some victims from walking.” Brain cancer is often a quick killer, while Alzheimer’s, of course, causes victims to slowly lose their cognitive abilities and is always deadly. This means there is a large market for neuroscience stocks to address to help patients find relief. Schizophrenia, meanwhile, prevents victims fro ...