Mild counterpoint: a friend of mine, a professional woman, started on GLP-1 drugs some time ago. She has lost weight, but she also says she's had significant cognitive improvements, more focus, better sleep, etc. It would be great to have research which explicitly teases out these various effects.
OTOH, these other effects could have been directly caused by weight loss. Being overweight isn't exactly healthy!
I really wish these weren’t forever drugs. I would be next in line.
This research already exists though. Obesity and being overweight increases the risk of sleep apnea, strokes, heart disease, diabetes, mental health problems, etc. etc