They should get their thyroid checked. I had Graves disease about 10 years ago. Hyperthyroidism. In the middle of it my memory went to complete crap. I couldn’t remember anything. Eventually killing my thyroid, which today I feel I could have nursed it back to health using alternative methods. But my numbers got levels out and pretty much everything went back to normal. I mean there are still issues, and will be for the rest of my life. Anytime your on a daily pill, I’m gonna get their side effects or long term problems because hey, who cares about health, really? Said pharmaceutical companies.