my guess would be the heatwave. E.g. in Germany the temperature/weather was miserable (for me personally the worst ever. E.g. I did not go running outside becau

my guess would be the heatwave. E.g. in Germany the temperature/weather was miserable (for me personally the worst ever. E.g. I did not go running outside because I felt dizzy all the time.); I don't think old/weakened people have could have coped with it well. We usually don't have AC in homes (was not necessary before climate change).