Just an update, because I think my last point wasn't clear.
I'm not saying forever drug is a bad thing. I'm saying people who wants to take GLP-1 as a temp drug to lose weight quickly and get off it may not realize the long term impact it may have on their body.
For an example, certain type of anti-depressants has serious side effect that if not carefully tapered off and managed with a different drug, can leave folks with cluster headaches that lasted several months if not years.
Nobody understands why it all helps, they just noticed it does work for something, quickly pushed it to the market first to get patents and get all the profits from it before generics + derivatives hit their pockets. Now, everyone is studying it because there's all new funding coming in for it and finding other versions of it that they can profit off it.
Nobody knows what migraine really is, so this isn't a surprise to them that GLP-1 may help, the main question is; why? So they have another data point proving that gut health has a direct correlation to the brain.
Keep in mind that a lot of the benefits go away once patients come off GLP-1 and we have not seen any studies yet on what happens to people who come off it for long term effects. It may in fact make things even worse and for a lot of people, they may have to stay on it for the rest of their lives.