[Izkata]

> Outdoors we at least have airflow to wick heat away. Indoors, it's just stale, warm air

Our bodies generate a pocket of heat that we end up sitting in without airflow. Years ago I bough an air circulator (a fan designed to push a lot of air slowly across a room, instead of blowing on a person) specifically to deal with this, and it brought my room-temperature-upper-tolerance from ~76 to ~80 without any need for AC.