I think the meds mess with your body's ability to regulate its temperature. Like with the beta blocker - it doesnt let your heart beat too fast if you get anxious, right? Or if you exercise - so wth, its like youre running with the emergency car brake on? It doesnt let your blood circulate as quickly to sweat and cool you off? I dont know how it works exactly, i just know i do not tolerate heat and sun like regular people do.

A woman i worked with went on a cruise and came back with sun poisoning. She was very blonde to begin with, but i think she was taking a med with a warning on it too. And that was just one day for her.