Intranasal Insulin and Alzheimer's Disease

intranasal insulin is a relatively recent thing. You can literally take the insulin you would inject, put it in a nasal spray and take a couple puffs in each nostril. It's one of those fringe area cognitive enhancement short-term strategies for when like, if you're going to write something or you want to be on stage. But what should you do it every single day? I would say there's no evidence that says it's not harmful.