Our house in Costa Rica was built with cinder blocks on a concrete pad. Very different from the wooden framing + drywall in my house in the US.
My house doesn’t have any heating but does have mini-split AC units in the bedroom that we usually run for 3 hours in the afternoon if someone is going to sleep in that room.
There is a concept of having a ceiling fan next to some windows at the top of the wall near the roof. The idea is to have the fan pull the hot air up and out that window, creating a nice draft. Usually you have this in the main living area. They have a name for this that escapes me at the moment.