Reversely, I was surprised at how healthy (tall, notably, and a healthy skin) Australians are compared to France. I highly suspect that Australia has proper air

Reversely, I was surprised at how healthy (tall, notably, and a healthy skin) Australians are compared to France. I highly suspect that Australia has proper air ventilation in classrooms and we don’t in France. In France it is common, for a class, a meeting, and and even in a theater or music show, to cram people in a room, and not worry about ventilation. People complaining will be seen as weak. I wonder whether proper air venting through school increases the global IQ and total skills of students.