If you do not have an AC, please obtain one or be aware of where to reach one; it's becoming a question of survival, not comfort. And monitor humidity levels and temperature where you live during heatwaves. We have already reached the day of regular lethal heatwaves, and it will get worse - I fully expect heatwaves to kill millions annually in years, not decades. In fact I suspect they already kill tens of thousands annually in say, India, but it's not properly being counted / reported on.
I live in the EU and one of my friend had a family member die in the recent major heatwave. The victim was 40, living alone, body found days later in their flat. When they called the forensic doctor dude to get a cause of death the family was very surprised about the fact it was the heat, and the doctor explained they saw several bodies a day of victims that were in their 30s.
And bear in mind this is from the direct effects; the agricultural yields collapses we're about to see will likely kill far more.






